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510(k) Data Aggregation
(26 days)
The DIGITAL RADIOGRAPHY CXDI-Pro / D1 provides digital image capture for conventional film/screen radiographic examinations. This device is intended to capture, for display, radiographic images of human anatomy, and to replace radiographic film/screen systems in all general purpose diagnostic procedures. This device is not intended for mammography applications.
The DIGITAL RADIOGRAPHY CXDI-Pro, also called the DIGITAL RADIOGRAPHY D1, (hereinafter referred to as CXDI-Pro) is a solid-state x-ray imager. The CXDI-Pro is a series of detectors, and in the predicate submission (K221876) consists of the CXDI-703C Wireless and CXDI-403C Wireless detectors, also called the AR-D3543W and AR-D4343W detectors respectively. The detectors intercept x-ray photons, and the scintillator emits visible spectrum photons that illuminate an array of photodetectors that create electrical signals. After the electrical signals are generated, the signals are converted to digital values. The digital values are sent to the PC via a wired or wireless connection, converted to images with the CXDI Control Software, and then displayed on the PC/monitors. The PC/monitors used with the CXDI-Pro are not a part of this submission. The proposed changes to the predicate device, CXDI-Pro, includes the addition of the new detector, CXDI-803C Wireless (also called the AR-D2735W) to the CXDI-Pro series; a firmware update from 01.01.03.00 to 01.02.00.01; and a CXDI Control Software version update from 3.10.2.2 to 3.10.2.6. The new detector, CXDI-803C Wireless, which differs in pixel count, imaging area, external dimensions, and weight, has the same image performance as the predicate detectors. None of the CXDI-Pro detectors have any dynamic functions (such as fluoroscopy).
Here's a breakdown of the acceptance criteria and study information based on the provided document:
1. Table of Acceptance Criteria and Reported Device Performance
The document does not explicitly state numerical "acceptance criteria" in the format of a table with thresholds and corresponding performance values. Instead, it focuses on demonstrating substantial equivalence to a predicate device by comparing technological characteristics and ensuring continued conformance with safety and performance standards.
The closest to "reported device performance" are the shared technical specifications and the statement that the new detector has the "same image performance as the predicate detectors."
| Characteristic / Standard | Acceptance/Conformance Statement (Implied Criteria) | Reported Device Performance |
|---|---|---|
| Intended Use | Identical to predicate device: Digital image capture for conventional film/screen radiographic examinations, displaying radiographic images of human anatomy, replacing film/screen systems in all general diagnostic procedures (excluding mammography). | The proposed device's Indications for Use are identical to the predicate device. |
| Functional Design | Substantially equivalent to predicate device. | The flat panel detector units are functionally the same, using the same components. The fundamental scientific technology has not been modified. |
| Device Components | Primarily identical, with specific modifications in detector model additions and firmware/software updates not impacting safety or effectiveness. | Proposed Device: CXDI-703C, CXDI-803C (NEW), CXDI-403C Wireless detectors. CXDI Control Software V3.10.2.6. Detector Firmware V01.02.00.01. Predicate Device: CXDI-703C, CXDI-403C Wireless detectors. CXDI Control Software V3.10.2.2. Detector Firmware V01.01.03.00. (The table lists the predicate as also having CXDI-803C, implying it was part of the earlier submission, but the text states the addition of 803C.) |
| Image Performance | Same as predicate detectors. | The new detector, CXDI-803C Wireless, has the same image performance as the predicate detectors. |
| Safety Standards | Conformance with U.S. Performance Standard for radiographic equipment and relevant voluntary safety standards for Electrical safety and Electromagnetic Compatibility testing (specifically IEC 60601-1, 60601-1-2, 60601-1-6, and 60601-2-54). Changes did not impact conformance and raised no new questions regarding safety or effectiveness. | Evaluation and verification/validation activities successfully demonstrated that the device continues to meet the standards for areas impacted by modifications. |
| Cybersecurity | Conformance with "Content of Premarket Submissions for Management of Cybersecurity in Medical Devices" guidance. | Not explicitly detailed, but stated as followed for applicable guidance documents. |
| Wireless Technology | Conformance with "Radio Frequency Wireless Technology in Medical Devices" guidance. | Not explicitly detailed, but stated as followed for applicable guidance documents. |
| Mechanical/Electrical | Conformance with "Guidance for the Submission of 510(k)s for Solid State X-ray Imaging Devices" guidance. | Not explicitly detailed, but stated as followed for applicable guidance documents. |
2. Sample size used for the test set and the data provenance
The document states: "Adequate detector bench testing should be sufficient to demonstrate that the subject detector. CXDI-Pro, works as intended."
It also mentions "verification/validation activities" which included "detector bench testing."
- Sample Size for Test Set: Not explicitly stated in terms of number of images or cases. The testing appears to be primarily at the component level (detector, firmware, software) through bench testing and conformance to standards, rather than a clinical study with a specific number of patient cases.
- Data Provenance: Not specified, but given the nature of "bench testing" and "conformance with U.S. Performance Standard," it would likely involve laboratory test data and manufactured test images, rather than patient data from specific countries. This is a "Special 510(k) Submission" for modifications, so extensive new clinical data is often not required if substantial equivalence can be demonstrated through non-clinical means.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
Not applicable. This was a non-clinical submission focused on technical equivalency, safety, and performance standards. There was no clinical ground truth established by experts.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
Not applicable. This was a non-clinical submission; no adjudication method for a clinical test set was required or mentioned.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
No. The device described is a digital radiography detector system, not an AI-powered diagnostic tool. Therefore, an MRMC comparative effectiveness study regarding human reader improvement with AI assistance is not relevant or reported.
6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done
Not applicable. The device is a hardware component (detector) and associated software/firmware for image acquisition and display, not an algorithm providing a standalone diagnostic output.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
Not applicable. For this specific submission, the "ground truth" was established against technical specifications, engineering performance metrics (e.g., MTF, DQE), and conformance to internationally recognized safety and performance standards (e.g., IEC 60601 series). There was no clinical ground truth (expert consensus, pathology, outcomes data) as this was a non-clinical submission for device modifications.
8. The sample size for the training set
Not applicable. This device is a diagnostic imaging system component, not a machine learning algorithm that requires a "training set."
9. How the ground truth for the training set was established
Not applicable. There was no training set for a machine learning algorithm.
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(13 days)
The AS-10 is indicated for use in generating fluoroscopic and radiographic images of human anatomy for angiography, diagnostic, and interventional procedures. The device is intended to replace spot-film devices. The device is also intended to replace fluoroscopic images obtained through image intensifier technology. Not intended for mammography applications.
The AS-10 is a solid state x-ray imager. It intercepts x-ray photons and the scintillator of the AS-10 emits visible spectrum photons that illuminate an array of photo-detectors that create electrical signals. After the electrical signals are generated, it is converted to digital value.
The subject of this Special 510(k) submission is a change to the AS-10 to make the PowerBox (PB-09), Power Supply Cable, and Optical Cable optional components. This change will allow for the use of any power source and non-Canon cables, given they meet the provided specifications. In addition, changes have been made to the firmware in the AS-10 detector unit and PowerBox to implement bug fixes and functional improvements. Together, these changes make up the AS-10.
The provided document describes a Special 510(k) submission for the Canon AS-10 device, detailing changes made to its optional components and firmware. The focus of this submission is to demonstrate substantial equivalence to its predicate device (Canon AS-10 / CXDI-401RF, K171194), rather than a de novo performance study. Therefore, the document does not contain specific acceptance criteria, reported device performance metrics against those criteria, or a study design involving expert readers, ground truth establishment, or multi-reader multi-case (MRMC) comparative effectiveness.
Instead, the submission focuses on affirming that the modifications did not negatively impact the device's conformance with existing performance and safety standards.
Here's a breakdown of the information that is and is not available based on your request:
1. Table of acceptance criteria and the reported device performance
The document does not provide a table of acceptance criteria for diagnostic performance (e.g., sensitivity, specificity, accuracy) or reported performance metrics against such criteria. The "Performance" section focuses on demonstrating continued conformance with regulatory standards after modifications.
2. Sample size used for the test set and the data provenance
Not applicable. This is a Special 510(k) submission for modifications, not a new device requiring a clinical performance study with a test set. The changes involved making PowerBox, Power Supply Cable, and Optical Cable optional components, and updating firmware for bug fixes and functional improvements.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
Not applicable, as no clinical test set requiring ground truth establishment is described.
4. Adjudication method for the test set
Not applicable, as no clinical test set requiring adjudication is described.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
No MRMC study is mentioned. The AS-10 is an imaging device (Solid State X-Ray Imager), not an AI-driven interpretive tool for physicians.
6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done
Not applicable. The AS-10 is the imaging hardware itself, not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
Not applicable, as no clinical performance study requiring ground truth is described.
8. The sample size for the training set
Not applicable. This document describes a hardware and firmware modification, not a machine learning model that would require a training set.
9. How the ground truth for the training set was established
Not applicable, as no training set for a machine learning model is described.
Summary of Device Modifications and Performance Activities (as per document):
The submission for the Canon AS-10 is a Special 510(k), indicating minor modifications to an already cleared device (predicate K171194).
The modifications are:
- Making the PowerBox (PB-09), Power Supply Cable, and Optical Cable optional components. This allows for the use of any power source and non-Canon cables that meet provided specifications.
- Updating firmware in the AS-10 detector unit and PowerBox to implement bug fixes and functional improvements.
How Performance was Addressed in this Submission:
The document states:
- "The fundamental scientific technology of the AS-10 has not been modified."
- "The detector unit of the AS-10 has not been modified..."
- "Evaluation of the changes to the AS-10 confirmed that the changes did not impact AS-10 conformance with the U.S. Performance Standard for radiographic equipment and with relevant voluntary safety standards for Electrical safety and Electromagnetic Compatibility testing, specifically IEC standards 60601-1, 60601-1-2, 60601-1-3, 60601-1-6, 62366, 60601-2-54, 60825-1, and 62304." (Note: IEC 62220-1 is also listed elsewhere but not explicitly linked to the conformance statement here).
- "These verification/validation activities successfully demonstrated that the device continues to meet the standards for the areas impacted by the device modifications to the predicate device and raises no new questions regarding either safety or effectiveness when compared to the predicate device."
Therefore, the "acceptance criteria" in this context are adherence to established international and U.S. performance/safety standards for medical electrical equipment and X-ray systems, and the "study" involves verification and validation (V&V) activities to confirm that the modifications did not degrade this conformance. This is a common approach for Special 510(k) submissions where the changes are limited and do not introduce new risks or alter the fundamental operating principles of the device.
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(45 days)
The DIGITAL RADIOGRAPHY CXDI-702C Wireless and CXDI-402C Wireless provides digital image capture for conventional film/screen radiographic examinations. This device is intended to capture, for display, radiographic images of human anatomy, and to replace radiographic film/screen systems in all general purpose diagnostic procedures. This device is not intended for mammography applications.
The CXDI-702C Wireless and CXDI-402C Wireless are solid-state x-ray imagers with approximate imaging areas of 350 x 426 mm and 415 x 426 mm, respectively. The detector intercepts x-ray photons, and the scintillator emits visible spectrum photons that illuminate an array of photodetectors that create electrical signals. After the electrical signals are generated, the signals are converted to digital values and the images will be displayed on monitors. The digital value can be communicated to the operator console via wired or wireless connection.
The subject of this Special 510(k) submission is a change to the Digital Radiography CXDI-710C Wireless and CXDI-410C Wireless to add the X-ray I/F unit option, update to the CXDI control software, change the IP Level, make changes to the case, and remove Standalone mode. The X-Ray I/F unit synchronizes the timing of the X-ray irradiation with the detector's capture and has been included in other Canon devices (CXDI-701C Wireless (K131106)). The X-Ray I/F Unit is an optional unit that allows the proposed device work together with several older units that use the X-ray I/F Unit instead of the multibox. The IP Level was changed from IPX7 to IP54. The Standalone mode was removed from the proposed devices. The imaging process to sharpen images, Edge Enhancement, was included in the Digital Radiography CXDI-710C Wireless and CXDI-410C Wireless, but adjustments of multiple imaging parameters were required to enhance structured edges. The optional feature, Advanced Edge Enhancement, for CXDI-702C Wireless and CXDI-402C Wireless automatically adjusts the six image processing parameters (Enhancement - Edge Enhancement, Enhancement - Edge Frequency, Enhancement - Contrast Boost, Dynamic Range Adjustment - Dark Region, Dynamic Range Enhancement - Bright Region, and Noise Reduction - Effect) by one button to enhance structures. The CXDI control software has been updated to a new version for functional improvements. The material of the casing of the detector has changed from fiberglass to magnesium alloy. Together, these changes to the Digital Radiography CXDI-710C Wireless and CXDI 410C Wireless make up the Digital Radiography CXDI-702C Wireless and CXDI-402C Wireless.
The provided text describes a 510(k) premarket notification for two digital radiography devices, the CXDI-702C Wireless and CXDI-402C Wireless. This submission is a "Special 510(k)," indicating that the changes made to the devices are minor and fall within established performance specifications, meaning a direct comparative effectiveness study with human readers (MRMC) might not have been the primary focus of the submission for overall device clearance, but rather a demonstration of continued equivalence through specific performance tests and comparative data with predicate devices.
The acceptance criteria and study proving the device meets these criteria can be inferred from the "Summary of Non-Clinical / Test Data" section and the "Comparisons with the predicate devices" table.
Here's a breakdown of the requested information based on the provided text:
1. Table of Acceptance Criteria and Reported Device Performance
The submission focuses on demonstrating substantial equivalence to predicate devices (CXDI-710C Wireless and CXDI-410C Wireless) after specific modifications. Therefore, the "acceptance criteria" are primarily that the modified devices maintain performance comparable to the predicate devices and meet relevant safety and performance standards. The "reported device performance" is largely framed as successful verification and validation tests and comparability data.
| Acceptance Criteria (Inferred from submission purpose and tests) | Reported Device Performance (Summary) |
|---|---|
| Maintain fundamental scientific technology | The fundamental scientific technology of the DIGITAL RADIOGRAPHY CXDI-702C Wireless and CXDI-402C Wireless has not been modified. |
| Mitigate risks and hazardous impacts of device modifications (e.g., FMEA) | Risks and hazardous impacts of the device modification were analyzed by FMEA methodology. Specific risk control and protective measures were reviewed and implemented. Overall assessment concluded all identified risks and hazardous conditions were successfully mitigated and accepted. |
| Maintain "safe and effective" performance comparable to predicate devices | Tests performed demonstrated that the devices are safe and effective, perform comparably to the predicate devices, and are substantially equivalent to the predicate devices. |
| Meet internal functional specifications (including software) | Verification/validation testing to internal functional specifications (including software) was conducted and results were provided. |
| Produce non-clinical image quality comparable to predicate devices | Non-clinical image comparisons involving flat panel display images taken by the new device and the predicate devices were performed. |
| Usability of new features (e.g., Advanced Edge Enhancement) | Interviews were conducted with experienced clinicians on the usability of the advanced edge enhancement. |
| Compliance with FDA requirements for software (Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices for a moderate LOC) | Documentation was provided demonstrating compliance, including results of verification/validation plus traceability of verification/validation tests to software requirements and software risk hazards. |
| Compliance with other relevant FDA guidance (e.g., Radio Frequency Wireless Technology in Medical Devices, Cybersecurity) | Other FDA guidance documents used in development include Radio Frequency Wireless Technology in Medical Devices and Content of Premarket Submissions for Management of Cybersecurity in Medical Devices. Documentation provided confirmed changes do not impact compliance with FDA requirements for Solid State X-ray Imaging Devices. |
| Compliance with U.S. Performance Standard for radiographic equipment and voluntary safety standards (IEC 60601 series) | Testing confirmed that the CXDI-702C Wireless and CXDI-402C Wireless comply with the U.S. Performance Standard for radiographic equipment and with relevant voluntary safety standards for Electrical safety and Electromagnetic Compatibility testing, specifically IEC standards 60601-1, 60601-1-2, 60601-1-6, and 60601-2-54. |
| Biocompatibility (ISO 10993 series) | Biocompatibility evaluation confirmed that the changes did not impact safety and that the devices comply with ISO 10993-1, 10993-5, and 10993-10. |
| No new questions regarding safety or effectiveness | Verification/validation activities successfully demonstrated that the device continues to meet standards for areas impacted by modifications and raises no new questions regarding either safety or effectiveness when compared to the predicate device. |
2. Sample Size Used for the Test Set and Data Provenance
- Sample Size: The document does not explicitly state a numerical sample size for the "non-clinical image comparisons" or "interviews with experienced clinicians." It refers to "tests performed on the models" and "non-clinical image comparisons." For a 510(k) Special submission, the focus is often on demonstrating that the modifications do not adversely affect performance, rather than a large-scale clinical trial.
- Data Provenance: Not explicitly stated. Given that it's a submission for products by Canon, Inc. (Japan), the non-clinical tests would typically be performed internally or by contracted labs. The "interviews with experienced clinicians" likely involved healthcare professionals in a relevant market, but the specific country is not detailed. The data is retrospective in the sense that it evaluates the modified device against known performance of the predicate device.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
- Number of Experts: Not explicitly stated for image evaluation.
- Qualifications of Experts: The document mentions "experienced clinicians" for interviews regarding the usability of the Advanced Edge Enhancement feature. Their specific qualifications (e.g., "radiologist with 10 years of experience") are not detailed. For the image comparisons, it implies internal testing and comparison to established predicate performance rather than requiring independent expert reads to establish ground truth in the same way a diagnostic AI would.
4. Adjudication Method for the Test Set
- Adjudication Method: Not specified. For non-clinical image comparisons demonstrating comparability, a formal adjudication process like 2+1 or 3+1 by multiple readers is not typically detailed in this type of 510(k) submission. It's more about objective image quality metrics and visual comparison against predicate performance.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done
- MRMC Study: No, the document does not indicate that a formal MRMC comparative effectiveness study was conducted. This type of study is more common for novel diagnostic AI devices where the primary claim is an improvement in human reader performance with AI assistance. For a Special 510(k) of a digital X-ray detector with minor modifications, the focus is on maintaining equivalence rather than demonstrating improvement over human readers.
- Effect Size: Not applicable, as an MRMC study was not described.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) was done
- Standalone Performance: Not applicable in the context of a digital X-ray detector. The device itself (the detector) processes images and provides them for display, but it doesn't have a diagnostic "algorithm" that operates independently to provide outputs like disease detection that would require a standalone performance evaluation in the same way a diagnostic AI software would. The "Advanced Edge Enhancement" is an image processing feature, not a diagnostic algorithm. The document explicitly states the "Standalone mode was removed from the proposed devices" for how the detector operates, meaning it always communicates with an operator console (human-in-the-loop for image review).
7. The Type of Ground Truth Used
- Ground Truth: For the non-clinical image comparisons, the "ground truth" would be established by comparing the images from the modified device against the known and accepted image quality and characteristics of the legally marketed predicate devices. This isn't "expert consensus" or "pathology" in the diagnostic sense, but rather a technical comparison of image properties (e.g., resolution, contrast, noise, and the visual appearance of anatomical structures) to ensure the modifications did not degrade quality. The "usability" of the Advanced Edge Enhancement was evaluated through clinician interviews, where their feedback implicitly serves as a form of ground truth for user experience.
8. The Sample Size for the Training Set
- Training Set Sample Size: The document does not describe a "training set" because the device is a digital X-ray detector, not an AI algorithm that learns from data. The "Advanced Edge Enhancement" is likely a rule-based or engineered image processing algorithm, not a machine learning model that requires a training set.
9. How the Ground Truth for the Training Set was Established
- Ground Truth for Training Set: Not applicable, as there is no mention of a training set for an AI algorithm.
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(26 days)
As a part of the CXDI series radiography system, the CXDI Control Software when used with a compatible CXDI detector is intended to provide digital image capture, and display for conventional film/screen radiographic examinations. This device is intended to replace radiographic film/screen systems in all general purpose diagnostic procedures including specialist areas like intensive care, trauma, and pediatric work. This device is not intended for fluoroscopic, angiographic, or mammography applications.
The subject of this Special 510(k) submission is a change to the CXDI Control Software to incorporate the ability to capture an automatically stitched long length image in a single exposure. The addition of the One Shot Long Length to the cleared Scatter Correction of CXDI Series is the subject of this Special 510(k) Submission. The One Shot Long Length stitches long length images into a single image which is accomplished by using multiple detectors, a single exposure, and the automatic stitching software. The One Shot Long Length software feature along with the Scatter Correction cleared under K153312 make up the Enhanced Feature Software Pack for CXDI Series. The Scatter Correction clearance and compatible detectors are not impacted by this submission. This submission adds the One Shot Long Length feature to limited compatible FPDs. The One Shot Long Length feature included in the Enhanced Feature Software Pack for CXDI Series also includes features for manual stitching to allow for users to manually adjust and fine-tune the stitch positions after the automatic stitch operation. By incorporating the One Shot Long Length imaging into the CXDI Control Software, images up to 120cm in length can be acquired in one exposure. The firmware within the flat panel detectors did not require updating. The flat panel detectors that have been previously cleared by FDA and are compatible with the Enhanced Feature Software Pack for CXDI Series have not been physically modified and performance have not changed.
Here's a summary of the acceptance criteria and study information for the Enhanced Feature Software Pack for CXDI Series, based on the provided text:
1. Table of Acceptance Criteria and Reported Device Performance
The provided text focuses on demonstrating substantial equivalence to a predicate device, rather than explicit acceptance criteria and device performance metrics. However, the core change in the proposed device is the "One Shot Long Length Imaging" feature, which involves automatic stitching of images from multiple detectors with manual adjustment capabilities. The performance is largely implied by the claim of substantial equivalence and successful mitigation of risks.
| Acceptance Criteria (Implied) | Reported Device Performance |
|---|---|
| Image Quality / Stitching Accuracy for One Shot Long Length | The "One Shot Long Length" feature allows obtaining images across multiple detectors, automatically stitched together, with the ability to make manual adjustments after the automatic stitching. It enables capturing images up to 120cm in length in one exposure. The text implies that the performance for this feature is adequate, and substantially equivalent to the predicate device for its intended use, as no specific performance deficiencies are noted. The study would have demonstrated that the automatically stitched images are clinically acceptable and that the manual adjustment feature provides sufficient control for fine-tuning. |
| Safety and Effectiveness | The hardware within the Canon Digital Radiography CXDI Series Detectors has not been modified, and the detectors retain the same performance, biocompatibility, effectiveness, and safety as the predicate device. A FMEA methodology was used to analyze risks and hazardous impacts of the device modification, and risk control and protective measures were reviewed and implemented. "The overall assessment concluded that all identified risks and hazardous conditions were successfully mitigated and accepted." The device complies with U.S. Performance Standard for radiographic equipment and relevant voluntary safety standards (IEC 60601-1, 60601-1-2, 60601-1-3, 60601-2-32), and FCC and ICES standards for wireless detectors. This indicates that the device's performance, post-modification, continues to meet established safety and effectiveness standards, especially given that the core imaging hardware remains unchanged. |
| Maintenance of Indication for Use | The intended use of the modified device, as described in the labeling, has not changed as a result of the modification(s). This is explicitly stated, suggesting the new feature does not alter the fundamental clinical applications for which the device is intended. |
2. Sample Size Used for the Test Set and Data Provenance
The provided document does not specify the sample size used for any test set or the data provenance (e.g., country of origin, retrospective/prospective). The submission refers to a "Special 510(k) Submission" for a software change, and typically such submissions might rely on internal validation and verification testing demonstrating that the new feature does not adversely affect the already cleared device's performance.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
This information is not provided in the document. The submission focuses on the technical aspects of the software modification and its substantial equivalence. Clinical studies with expert-adjudicated ground truth are not explicitly mentioned in this summary.
4. Adjudication Method for the Test Set
This information is not provided in the document.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
There is no mention of an MRMC comparative effectiveness study or any assessment of human reader improvement with or without AI assistance. The "Enhanced Feature Software Pack" introduces an "One Shot Long Length Imaging" feature that automatically stitches images, but it's not described as an AI-driven diagnostic aid that would typically involve an MRMC study for assessing reader performance. It's more of an image acquisition and processing enhancement.
6. If a Standalone (i.e. algorithm only without human-in-the loop performance) was done
The document does not explicitly state that a standalone performance study was done for the "One Shot Long Length Imaging" algorithm. However, given that it's an automated stitching process, internal verification and validation testing would have been conducted to ensure the accuracy and quality of the stitched images generated by the algorithm. This would be a form of standalone testing, but specific metrics and methodology are not detailed here.
7. The Type of Ground Truth Used (expert consensus, pathology, outcomes data, etc.)
The document does not specify the type of ground truth used for any testing. For an image stitching feature, ground truth would likely involve measurements of anatomical alignment and continuity as determined by expert review or comparison to reference images, but this is not explicitly stated.
8. The Sample Size for the Training Set
This information is not provided in the document. The device primarily involves an automated image stitching algorithm, rather than a machine learning model that typically requires a large training set in the conventional sense.
9. How the Ground Truth for the Training Set was Established
This information is not provided in the document. As mentioned above, it's unclear if a traditional "training set" with ground truth, as used for machine learning, was employed in the development of this image stitching feature.
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(200 days)
The DIGITAL RADIOGRAPHY CXDI-410C Wireless provides digital image capture for conventional film/screen radiographic examinations. This device is intended to capture for display radiographic images of human anatomy, and to replace radiographic film/screen systems in all general purpose diagnostic procedures. This device is not intended for mammography applications.
The CXDI-410C Wireless is a solid state x-ray imager with an approximate imaging area of 42.6 x 41.5 cm. The detector intercepts x-ray photons and the scintillator emits visible spectrum photons that illuminate an array of photo-detectors that create electrical signals. After the electrical signals are generated, the signals are converted to digital values and the images will be displayed on monitors. The digital value can be communicated to the operator console via wiring connection or wireless.
For the proposed model, temporary image storage is now possible and the detector weigh has been reduced from that of the predicate. The proposed model has increased protection against ingress, and continues to include the Standard Synchronization Mode, Non-Generator Connection Mode (detection of x-ray irradiation without direct electrical connection to the x-ray generator), and is compatible with the Scatter Correction feature. Testing has been conducted and has demonstrated that these changes have no impact on the safety or effectiveness of this flat panel detector.
The Standalone Mode allows for examinations using only the detector and a mobile X-ray system without a control computer by utilizing the temporary image storage on the FPD. The CXDI-410C Wireless can be used in emergency/trauma situations and other environments where equipment other than the detector and mobile X-ray system cannot be used and/or wireless communication is not possible.
The weight of the CXDI-410C (2.8kg) is effectively 25% less than the weight of the predicate CXDI-401C (3.8kg.) The weight reduction was accomplished through material changes, changes in the structure, and downsized components such as electrical boards and batteries.
The proposed device CXDI-410C offers an optional docking station. This option allows for a simplified method for charging the internal battery of the proposed CXDI-410C. The Docking Station connects to the PC with an Ethernet cable (cannot communicate wirelessly.) By placing a FPD into the docking station, that FPD is "registered" and available for use.
The provided text describes a 510(k) summary for the DIGITAL RADIOGRAPHY CXDI-410C Wireless device. This document focuses on demonstrating substantial equivalence to a predicate device, rather than providing detailed acceptance criteria and a standalone study proving performance against those criteria.
Therefore, many of the requested details about acceptance criteria, specific studies, ground truth establishment, expert involvement, and statistical analyses (like MRMC studies) are not available in the provided text. The document primarily relies on non-clinical image comparisons and compliance with relevant standards to assert substantial equivalence.
Here's the information that can be extracted or inferred from the text, along with details explicitly stated as not available:
1. Table of Acceptance Criteria and Reported Device Performance
The document does not explicitly present a table of acceptance criteria with corresponding performance metrics like sensitivity/specificity/accuracy goals. Instead, it focuses on demonstrating equivalency in key technical specifications and performance to a predicate device.
| Characteristic | Acceptance Criteria (Inferred from Predicate Equivalence) | Reported Device Performance (CXDI-410C Wireless) |
|---|---|---|
| Indication for Use | Equivalent to predicate (digital image capture for conventional film/screen radiographic examinations, general diagnostic procedures, not mammography). | Matches predicate. Digital image capture for conventional film/screen radiographic examinations, general diagnostic procedures, not mammography. |
| Application | General Radiography | General Radiography |
| Scintillator | CsI(TI) | CsI(TI) |
| Pixel Pitch | 125 μm | 125 μm |
| Pixels | 3,408 x 3,320 (≈ 11.3 mil) | 3,408 x 3,320 (≈ 11.3 mil) |
| DQE | 0.6 | 0.6 |
| Spatial Resolution | 35% [MTF@2lp/mm] | 35% [MTF@2lp/mm] |
| Software Functionality | CXDI Control Software features | CXDI Control Software + Added Standalone function |
| Firmware Functionality | PCA-FE-701 features | PCA-FE-710 + Added Standalone function, wireless channels with DFS and TPC functions |
| Safety/Effectiveness | Demonstrated to be safe and effective, performing comparably to the predicate device. | Verification/validation testing (including software) and non-clinical image comparisons confirmed safety/effectiveness. Compliance with IEC standards 60601-1, 60601-1-2, 60601-1-6, 60601-2-54. |
Key Differences/Improvements:
- Weight: Predicate: ≈ 3.8 kg; Proposed: ≈ 2.8 kg (25% reduction)
- External Dimensions: Predicate: 460 x 460 x 15.4 mm; Proposed: 460 x 460 x 15.7 mm
- Temporary Image Storage: Proposed device adds temporary image storage.
- Docking Station: Proposed device offers an optional docking station for charging and registration.
2. Sample Size Used for the Test Set and Data Provenance
- Sample Size: Not specified. The document mentions "non-clinical image comparisons involving flat panel display static and dynamic images." The exact number of images or cases used for these comparisons is not provided.
- Data Provenance: Not specified (e.g., country of origin, specific institutions). The nature of the "non-clinical images" suggests they were likely test images generated under controlled conditions rather than patient data from a specific country.
- Retrospective or Prospective: Not specified, but "non-clinical image comparisons" typically refer to controlled test images rather than retrospective or prospective patient studies.
3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications
- Number of Experts: Not specified.
- Qualifications of Experts: Not specified.
The study referenced is "non-clinical image comparisons." This often implies technical evaluations rather than diagnostic interpretation requiring clinical experts to establish ground truth.
4. Adjudication Method for the Test Set
- Adjudication Method: Not specified. Given the nature of "non-clinical image comparisons" for technical equivalence, a formal clinical adjudication process as seen in diagnostic performance studies is unlikely to have been performed or necessary based on this summary.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done, and the effect size of how much human readers improve with AI vs without AI assistance
- MRMC Study: No, an MRMC comparative effectiveness study was not performed or described.
- AI Improvement Effect Size: Not applicable, as this device is a digital radiography system (hardware), not an AI-powered diagnostic algorithm enhancing human reader performance. The document describes a flat panel detector, not software with AI capabilities for diagnostic assistance.
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) was done
- Standalone Performance: The document refers to "Standalone function" for the device, which means the detector can operate and temporarily store images without a control computer. This is a functional feature of the device's hardware and firmware, not a measure of its diagnostic performance as a standalone algorithm (e.g., classifying disease) in the context of an AI device. The document does not describe a standalone diagnostic algorithm performance study.
7. The Type of Ground Truth Used
- Type of Ground Truth: Not explicitly stated but inferred to be technical benchmarks or quantitative image quality metrics for "non-clinical image comparisons." For instance, DQE and MTF values are listed, which are objective measures. There is no mention of expert consensus, pathology, or outcomes data being used as ground truth for these non-clinical comparisons, as these are typically for clinical diagnostic performance studies.
8. The Sample Size for the Training Set
- Sample Size: Not applicable and not specified. This device is a digital X-ray detector, not a machine learning or AI algorithm that requires a training set of data.
9. How the Ground Truth for the Training Set was Established
- Ground Truth for Training Set: Not applicable. As mentioned, this is a hardware device, not an AI algorithm requiring a training set with established ground truth.
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(30 days)
The AS-10 / CXDI-401RF is indicated for use in generating fluoroscopic and radiographic images of human anatomy for angiography, diagnostic, and interventional procedures. The device is intended to replace spot-film devices is also intended to replace fluoroscopic images obtained through image intensifier technology. Not intended for mammography applications.
The AS-10 / CXDI-401RF is a solid state x-ray imager. It intercepts x-ray photons and the scintillator of the AS-10 / CXDI-401RF emits visible spectrum photons that illuminate an array of photo-detectors that create electrical signals. After the electrical signals are generated, it is converted to digital value.
The provided text describes a 510(k) premarket notification for a medical device, the AS-10 / CXDI-401RF, an x-ray imager. The submission focuses on demonstrating substantial equivalence to predicate devices rather than proving specific performance criteria through a detailed clinical study with acceptance metrics for a diagnostic device.
Therefore, the requested information cannot be fully extracted as it pertains to a diagnostic AI/CADe device, which this submission does not explicitly detail. This submission focuses on the safety and effectiveness of new imaging hardware (a flat panel detector) and its comparability to existing technology.
However, I can extract information related to the device's technical specifications and the non-clinical tests performed to demonstrate its equivalence.
Here's an attempt to answer based on the provided text, recognizing the limitations of the document's content for your specific questions:
1. A table of acceptance criteria and the reported device performance
The document does not explicitly state "acceptance criteria" in the context of a diagnostic performance study with specific metrics (like sensitivity, specificity, or AUC) as one might find for an AI/CADe device. Instead, it compares the technical specifications and non-clinical performance of the AS-10 / CXDI-401RF to its predicate devices. The "performance" is implicitly demonstrated by showing that the new device's technical parameters are comparable to or improved upon the predicates and that it is safe and effective.
| Characteristic | Predicate Devices (CXDI-50RF K092439 & CSX-30 K162909) (Implicit "Acceptance Criteria" for Equivalence) | AS-10 / CXDI-401RF (Reported Device Performance) | Comparison to Predicates |
|---|---|---|---|
| Application | Fluoroscopy and Spot Radiology | Fluoroscopy and Spot Radiology | Identical |
| Technology | Flat panel detector: Scintillator and a-Si | Flat panel detector: Scintillator and a-Si | Identical |
| Scintillator | CsI(TI) | CsI(TI) | Identical |
| Pixel Pitch | 160 x 160 µm | 160 x 160 µm | Identical |
| Pixels | a) 2,208 x 2,688 (≈ 5.9 million)b) 2,496 x 1,856 (≈ 4.6 million) | 2,688 x 2,688 (≈ 7.2 million) | Modified (Increased) |
| Image Size | a) 350 x 430 mmb) 399 x 297 mm | 430 x 430 mm | Modified (Increased) |
| Overall Dimensions | a) 493 x 503 x 26 mmb) 470 x 363 x 82.5 mm | 469 x 468 x 58 mm | Modified |
| Weight | a) 5.7 kgb) 19.0 kg | 13 kg | Modified |
| Acquisition Mode (Binning) | a) Up to 15 fps (1x1)b) Up to 30 fps (2x2) | Up to 15 fps (1x1)Up to 30 fps (2x2)Up to 30 fps (3x3) | Identical (1x1, 2x2), Modified (3x3 added) |
| DQE @ 1 µGy in 0 lp/mm, RQA5 | a) 0.6b) 0.79 | 0.75 | Modified |
| Spatial Resolution [MTF@2cycle/mm, RQA5] | a) 0.3b) 0.22 | 0.28 | Modified |
| A/D Conversion | a) 14-bitb) 16-bit | 16-bit | Modified (from 14-bit to 16-bit for predicate a), Identical (for predicate b) |
2. Sample size used for the test set and the data provenance (e.g., country of origin of the data, retrospective or prospective)
The document mentions "non-clinical image comparisons involving flat panel display static and dynamic images taken with the new device and the predicate device CXDI-50RF." However, it does not specify a "sample size" in terms of number of patients or specific images, nor does it provide details on data provenance (country, retrospective/prospective). The testing focused on technical performance rather than clinical data sets.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g., radiologist with 10 years of experience)
This information is not provided. The non-clinical tests described focus on technical image quality and system performance rather than a diagnostic evaluation requiring expert readers to establish ground truth.
4. Adjudication method (e.g., 2+1, 3+1, none) for the test set
Not applicable, as no expert human readers or adjudication process for diagnostic interpretations are described.
5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This submission is for new imaging hardware, not an AI/CADe device designed to assist human readers.
6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done
Not applicable. This is not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
For the "non-clinical image comparisons," the "ground truth" would likely be objective measurements of image quality (e.g., DQE, MTF, noise characteristics) comparing the new device's output to the predicate device's output, rather than a clinical ground truth established by medical experts or pathology.
8. The sample size for the training set
Not applicable. This is not a machine learning or AI device that requires a training set.
9. How the ground truth for the training set was established
Not applicable.
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(27 days)
The DIGITAL RADIOGRAPHY CXDI-710C Wireless and CXDI-810C Wireless provides digital image capture for conventional film/screen radiographic examinations. This device is intended to capture, for display, radiographic images of human anatomy, and to replace radiographic film/screen systems in all general purpose diagnostic procedures. This device is not intended for mammography applications.
The two models of detectors included in this submission are solid state x-ray imagers. Model CXDI-710C Wireless has an approximate imaging area of 35.0 x 42.6 cm, while model CXDI-810C Wireless has an approximate imaging area of 35.0 x 27.4 cm. For both models, the detector intercepts x-ray photons and the scintillator emits visible spectrum photons that illuminate an array of photo-detectors that create electrical signals. After the electrical signals are generated, the signals are converted to digital values and the images will be displayed on monitors. The digital value can be communicated to the operator console via wiring connection or wireless. For the proposed models, temporary image storage is now possible and the detector weight has been reduced from that of the predicates. The proposed models have increased protection against ingress, continue to include the Non-Generator Connection Mode (detection of x-ray irradiation without direct electrical connection to the x-ray generator) and are compatible with the Scatter Correction feature.
This document is a 510(k) summary for the Canon Digital Radiography CXDI-710C Wireless and CXDI-810C Wireless devices. It describes their equivalence to predicate devices rather than proving a new or unique performance based on specific clinical acceptance criteria in the way a novel AI algorithm might. Therefore, the information typically found for AI/ML device approval concerning acceptance criteria, ground truth establishment, and clinical study details (like MRMC studies) is not present.
However, based on the provided text, we can infer some aspects and extract relevant information about the non-clinical testing performed to demonstrate substantial equivalence.
Here's an analysis based on the provided document:
1. A table of acceptance criteria and the reported device performance:
Since this is a 510(k) for a digital radiography detector aiming for substantial equivalence to a predicate device, the "acceptance criteria" are primarily related to meeting performance specifications comparable to the predicate and complying with relevant standards, rather than clinical efficacy metrics for a new diagnostic claim.
| Acceptance Criteria (Implied) | Reported Device Performance |
|---|---|
| Functional Equivalence to Predicate | "The proposed devices are functionally identical to the predicate devices." (Page 4) "The evaluations of the CXDI-710C / 810C Wireless compared to the CXDI-701C / 801C Wireless, show the CXDI-710C / 810C Wireless to be equivalent to the CXDI-701C / 801C Wireless." (Page 5) "Canon, Inc. – Medical Equipment Group considers the DIGITAL RADIOGRAPHY CXDI-710C Wireless and DIGITAL RADIOGRAPHY CXDI-810C Wireless devices to be substantially equivalent to the predicate devices listed above. This conclusion is based on the similarities in primary intended use, principles of operation, functional design, and established medical use." (Page 5) |
| Safety and Effectiveness Demonstration | "Tests were performed on the models which demonstrated that the device is safe and effective..." (Page 5) "...raises no new questions regarding either safety or effectiveness when compared to the predicate device(s)." (Page 5) |
| Image Quality (Implied comparability to predicate) | "non-clinical image comparisons involving flat panel display images taken with the new device and the predicate device(s)." (Page 5) |
| Compliance with FDA Guidance for Software in Medical Devices | "Documentation was provided demonstrating compliance... to all FDA requirements stated in Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices for a moderate LOC, including results of verification/validation plus traceability of verification/validation tests to software requirements and software risk hazards." (Page 5) |
| Compliance with FDA Guidance for Solid State X-ray Devices | "Documentation was provided demonstrating that the CXDI-710C / 810C Wireless complies with the FDA requirements stated in Guidance for the Submission of 510(k)'s for Solid State X-ray Imaging Devices." (Page 5) |
| Compliance with Radiographic Equipment Standards | "Testing confirmed that the CXDI-710C Wireless and CXDI-810C Wireless complies with the U.S. Performance Standard for radiographic equipment and with relevant voluntary safety standards for Electrical safety and Electromagnetic Compatibility testing, specifically IEC standards 60601-1, 60601-1-6, and 60601-2-54." (Page 5) |
| Physical Characteristics (Comparable or Improved) | Weight: New: 710C: 2.3 kg, 810C: 1.8 kg vs. Predicate: 701C: 3.3 kg, 801C: 2.3 kg (Improved/Reduced Weight) (Page 4) External Dimensions, Scintillator, Pixel Pitch, Pixels, Spatial Resolution: (Functionally Equivalent/The Same) (Page 4) |
2. Sample sized used for the test set and the data provenance:
- Sample Size for Test Set: The document does not specify a "test set" in terms of patient images for clinical evaluation in the way an AI algorithm study would. The testing appears to be primarily non-clinical, involving functional specifications, image comparisons (presumably phantom or test patterns given the context of a DR detector), and compliance testing. No specific number of images or cases for clinical validation is mentioned.
- Data Provenance: Not applicable as no specific clinical patient data set or clinical study is described. The tests are non-clinical (e.g., "non-clinical image comparisons," "verification/validation testing to internal functional specifications").
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- Not applicable. As this is a 510(k) for a digital radiography panel showing substantial equivalence to a predicate, and not a novel diagnostic AI algorithm, there is no mention of human expert readers establishing ground truth on a clinical test set.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:
- Not applicable. No clinical test set with human readers requiring adjudication is described.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
- No MRMC study was done. This 510(k) is for a digital X-ray detector, not an AI-assisted diagnostic software.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- The device itself is a standalone imaging device (digital radiography detector). Its performance is evaluated intrinsically through physical and image quality metrics and comparison to a predicate, not as an algorithm performing a diagnostic task. The "Standalone function" mentioned under "Control SW" and "Device FW" (Page 4) refers to the detector's ability to save captured images internally without immediate connection to an external device, which is a technical feature, not a diagnostic performance claim.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc):
- Not applicable in the context of diagnostic ground truth from patient data. The "ground truth" for this device's evaluation is primarily its adherence to engineering specifications, image quality standards (e.g., MTF), and compliance with regulatory standards, as demonstrated through non-clinical testing. Comparison is made against a predicate device.
8. The sample size for the training set:
- Not applicable. This is not an AI/ML algorithm that requires a training set.
9. How the ground truth for the training set was established:
- Not applicable. This is not an AI/ML algorithm that requires a training set or ground truth establishment for training.
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(102 days)
The flat panel detector CSX-30 is designed to provide fluoroscopic and spot radiographic images of human anatomy during diagnostic, surgical and interventional procedures. Examples of clinical application may include angiography, endoscopy, urologic, orthopedic, neurologic, vascular, critical-care and emergency room procedures or other imaging applications at the physician's discretion. The device is intended to replace spot-film device is also intended to replace fluoroscopic images obtained through image intensifier technology. Not intended for mammography applications.
The CSX-30 is a digital radiography flat panel detector that can take fluoroscopic and spot radiographic images of any part of the body. It directly converts the X-ray images captured by the sensor into high-resolution digital images. The instrument is a component of an x-ray system and as such cannot be used outside of such a system. This unit converts the X-rays into digital signals. Not intended for mammography applications.
The provided text describes a 510(k) summary for a flat panel detector (CSX-30), which is a component of an X-ray system. The study described focuses on demonstrating substantial equivalence to a predicate device (CSX-10) rather than proving "device meets acceptance criteria" in the context of clinical performance or diagnostic accuracy of an AI algorithm.
Therefore, many of the requested criteria for AI/diagnostic studies, such as sample size for test sets, number of experts, adjudication methods, MRMC studies, or specific ground truth methodologies for clinical conditions, are not applicable or detailed in this document because the device is a hardware component (a flat panel detector), not an AI-driven diagnostic system.
The "acceptance criteria" here relate to engineering specifications, safety standards, and performance characteristics compared to a predicate device.
However, I can extract the information that is present and note what is not applicable.
Here's the summary based on the provided document:
Acceptance Criteria and Device Performance Study for CSX-30 Flat Panel Detector
The study aimed to demonstrate substantial equivalence of the new device (CSX-30 Flat Panel Detector) to a legally marketed predicate device (CSX-10 Flat Panel Detector). The "acceptance criteria" are implied by the comparison to the predicate device and compliance with relevant standards.
1. Table of Acceptance Criteria (Implied by Comparison) and Reported Device Performance
| Parameter/Acceptance Criteria (Implied) | New Device: CSX-30 (K162909) | Predicate Device: CSX-10 (K111824) | Performance Status vs. Predicate |
|---|---|---|---|
| Application | Fluoroscopy and Spot Radiology | Fluoroscopy and Spot Radiology | Identical |
| Technology | Flat panel detector: Scintillator and CSX sensing unit | Flat panel detector: Scintillator and CSX sensing unit | Identical |
| Scintillator | CsI(TI) [Cesium Iodide doped with Thallium] | CsI(TI) [Cesium Iodide doped with Thallium] | Identical |
| Pixel Pitch | 160 x 160 μm | 160 x 160 μm | Identical |
| Pixels | 2,496 x 1,856 (approx 4.6 million) | 1,792 x 1,632 (approx 2.9 million) | Modified (Increased) |
| Image Size | 399 x 297 mm | 287 x 261 mm | Modified (Increased) |
| Overall Dimensions | 470 x 363 x 82.5 mm | 360 x 346 x 65.5 mm | Modified (Increased) |
| Weight | 19.0 kg | 6.7 kg | Modified (Increased) |
| Acquisition Mode (Binning mode) | Up to 60 fps (1x1)Up to 230 fps (2x2)Up to 300 fps (4x4) | Up to 30 fps (1x1)Up to 100 fps (2x2)Up to 200 fps (4x4) | Modified (Increased Performance) |
| A/D Conversion | 16-bit | 14-bit | Modified (Increased) |
| Safety and Performance Standards | Compliance with various IEC standards (60601-1, -1-2, -1-3, -1-9, -2-32, -2-54, 60825-2, 60825-1, 62220-1-3), FDA Guidance for Solid State X-ray Imaging Devices, and Software Contained in Medical Devices. | (Implied compliance for predicate) | Confirmed Compliance |
| Image Quality | Non-clinical image comparisons show equivalence to predicate. | (Predicate image quality confirmed) | Comparable/Equivalent |
2. Sample Size Used for the Test Set and Data Provenance
- Sample Size: The document does not specify a distinct "test set" sample size in terms of number of patients or images for clinical performance evaluation, as this is a hardware device submission focusing on engineering and safety. It mentions "non-clinical image comparisons involving flat panel display images." The exact number of images or test runs for these comparisons is not specified.
- Data Provenance: Not explicitly stated regarding country of origin. The study appears to be "non-clinical," focusing on device performance and safety characteristics rather than clinical trial data on specific patient populations. It is retrospective in the sense that a comparison is made to an existing predicate device's characteristics.
3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications
- Not Applicable/Not Specified: As this is a hardware device submission focused on technical specifications and safety standards, the concept of "ground truth" derived from expert consensus on clinical diagnoses (e.g., by radiologists) is not relevant in the way it would be for an AI diagnostic device. The "truth" is established by direct measurement of device parameters and compliance with engineering standards.
4. Adjudication Method for the Test Set
- Not Applicable: No clinical adjudication process is described as this is not a clinical diagnostic performance study requiring expert consensus on findings.
5. MRMC Comparative Effectiveness Study
- Not Performed/Applicable: An MRMC study is typically for evaluating the impact of an AI system on human reader performance. This study is for a flat panel detector (hardware component), not an AI algorithm.
6. Standalone Performance Study (Algorithm Only)
- Not Applicable: This is not an AI algorithm. The performance of the flat panel detector is assessed through its technical specifications (e.g., pixel count, frame rate, A/D conversion), compliance with safety standards, and non-clinical image quality comparisons with the predicate.
7. Type of Ground Truth Used
- Engineering Specifications and Standard Compliance: The "ground truth" for this device's performance is based on its measured physical and electrical characteristics (e.g., pixel count, dimensions, weight, frame rate, A/D conversion), its ability to meet specified performance parameters (e.g., DOE, dynamic range), and its adherence to established national and international safety and performance standards (e.g., IEC 60601 series, FDA Guidance documents). Comparison of "flat panel display images" implies direct image quality assessment, often against a reference or the predicate.
8. Sample Size for the Training Set
- Not Applicable: This is a hardware device, not an AI model that requires a training set.
9. How the Ground Truth for the Training Set Was Established
- Not Applicable: As there is no training set for an AI model, this question is not relevant.
In conclusion, the provided document details a 510(k) submission for a non-AI medical imaging hardware component, focusing on demonstrating substantial equivalence to a predicate device through technical specification comparisons and compliance with relevant safety and performance standards. Many of the questions posed are specifically for AI/software as a medical device (SaMD) clinical performance studies and therefore do not apply to this submission type.
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(224 days)
As a part of the CXDI series radiography system, the CXDI Control Software when used with a compatible CXDI detector is intended to provide digital image capture, and display for conventional film/screen radiographic examinations. This device is intended to replace radiographic film/screen systems in all general purpose diagnostic procedures including specialist areas like intensive care, trauma, and pediatric work. This device is not intended for fluoroscopic, angiographic, or mammography applications.
The subject of this submission is a change to the CXDI Control Software to incorporate a scatter correction algorithm. By incorporating the scatter correction algorithm into the CXDI Control Software, the image contrast is enhanced and the images produced have similar detail contrast as images acquired with an anti-scatter grid.
The provided document is a 510(k) summary for Canon's "Scatter Correction for CXDI Series" device. It describes the device, its intended use, and a summary of testing conducted to demonstrate its substantial equivalence to predicate devices. However, the document does NOT contain details about specific acceptance criteria or a detailed study proving the device meets those criteria with quantitative values. It only provides a general statement that "Tests were performed on the proposed CXDI Control Software which demonstrates that the device is safe and effective, performs comparably to the predicate device(s), and is substantially equivalent to the predicate device(s)."
Therefore, I cannot provide the detailed information requested in your prompt based on this document.
Here's a breakdown of what can be extracted and what cannot:
Information that CANNOT be provided from this document:
- A table of acceptance criteria and the reported device performance: The document does not list specific acceptance criteria (e.g., minimum DQE, contrast-to-noise ratio improvement) or corresponding measured performance values.
- Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective): The document mentions "Additional evaluations were conducted with clinical images to demonstrate and evaluate the performance of the software feature" but does not specify the number of images, their origin, or whether they were retrospective or prospective.
- Number of experts used to establish the ground truth for the test set and the qualifications of those experts: This information is not present.
- Adjudication method (e.g. 2+1, 3+1, none) for the test set: This information is not present.
- If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance: The document describes "image comparisons involving flat panel display images taken without a grid" and "evaluations with clinical images" but does not detail a formal MRMC study or any results regarding human reader performance with/without the AI. The device is a "scatter correction algorithm" to enhance image quality, not a diagnostic AI that assists readers in interpretation.
- If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: While the "image comparisons" and "evaluations with clinical images" suggest some form of standalone performance assessment of the scatter correction, no specific metrics or study design for standalone performance are provided.
- The type of ground truth used (expert concensus, pathology, outcomes data, etc): This information is not present.
- The sample size for the training set: The document does not mention training data, as this is a software update incorporating an algorithm, not explicitly a machine learning model requiring a training set in the typical sense.
- How the ground truth for the training set was established: Not applicable, as training data is not mentioned as part of this submission.
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(210 days)
The DIGITAL RADIOGRAPHY CXDI-401C Wireless provides digital image capture for conventional film/screen radiographic examinations. This device is intended to replace radiographic film/screen systems in all general purpose diagnostic procedures. This device is not intended for mammography applications.
The model of detector included in this submission is a solid state x-ray imager. Model CXDI-401C Wireless has an approximate imaging area of 41.5 x 42.6 cm. For this model, the detector intercepts x-ray photons and the scintillator emits visible spectrum photons that illuminate an array of photo-detectors that create electrical signals. After the electrical signals are generated, the signals are converted to digital values and the images will be displayed on monitors. The digital value can be communicated to the operator console via wiring connection or wireless. The proposed model includes the Non-Generator Connection Mode, allowing this model to detect x-ray irradiation without direct electrical connection to the x-ray generator.
The Canon DIGITAL RADIOGRAPHY CXDI-401C Wireless device is a flat panel digital imager intended to replace conventional film/screen radiographic systems for general diagnostic procedures, excluding mammography. The provided document details its substantial equivalence to predicate devices, but it does not contain information about acceptance criteria or specific studies proving device performance against such criteria in the way a clinical performance study would.
Instead, the document focuses on demonstrating substantial equivalence to existing FDA-cleared predicate devices (K131106 MQB DIGITAL RADIOGRAPHY CXDI-701C Wireless and K103591 MQB DIGITAL RADIOGRAPHY CXDI-401C COMPACT). The performance claim is that the device is "safe and effective, performs comparably to the predicate device(s), and is substantially equivalent."
Here's a breakdown of the requested information based on the provided text:
1. Table of Acceptance Criteria and Reported Device Performance:
The document does not explicitly present a table of quantitative acceptance criteria for clinical performance (e.g., sensitivity, specificity, accuracy, or image quality metrics for specific disease detection) or compare the device's performance against such criteria. The "performance" described is largely comparative to predicate devices for technological characteristics and compliance with safety and established standards.
| Acceptance Criteria (Implied) | Reported Device Performance |
|---|---|
| Safety and Effectiveness | "device is safe and effective" |
| Comparable performance to predicate devices | "performs comparably to the predicate device(s)" |
| Substantial equivalence to predicate devices | "is substantially equivalent to the predicate device(s)" |
| Compliance with internal functional specifications (including software) | "verification/validation testing to internal functional specifications (including software)" |
| Non-clinical image comparisons | "non-clinical image comparisons involving flat panel display images taken with the new device and the predicate devices" |
| Compliance with FDA Guidance for Software in Medical Devices | "compliance of the CXDI-401C Wireless to all FDA requirements stated in Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices" |
| Compliance with FDA Guidance for RF Wireless Technology | "CXDI-401C Wireless RF technology is in accordance with the FDA Guidance Radio Frequency Wireless Technology in Medical Devices" |
| Compliance with FDA Guidance for Solid State X-ray Imaging Devices | "CXDI-401C Wireless complies with the FDA requirements stated in Guidance for the Submission of 510(k)'s for Solid State X-ray Imaging Devices" |
| Equivalence in image quality to CXDI-701C Wireless | "evaluations of the Non-clinical and Clinical Considerations... including the image quality evaluation, show the CXDI-401C Wireless to be equivalent to the CXDI-701C Wireless" |
| Compliance with U.S. Performance Standard for radiographic equipment | "complies with the U.S. Performance Standard for radiographic equipment" |
| Compliance with relevant voluntary safety standards (IEC) | "complies with... IEC standards 60601-1, 60601-1-2, 60601-1-3, and 60601-2-32" |
| Compliance with FCC test standards (SAR, EMI) | "complies with the FCC test standard for SAR... and for EMI test regulations FCC Part 15 Subpart B:2012 Class A and ICES-003 Issue 5:2012 Class A" |
2. Sample size used for the test set and the data provenance:
The document mentions "non-clinical image comparisons involving flat panel display images taken with the new device and the predicate devices" and "image quality evaluation." However, it does not specify the sample size for any test set (number of images, patients, or types of cases) nor the data provenance (e.g., country of origin, retrospective/prospective). These appear to be internal verification and validation tests rather than a formal clinical trial with a defined test set.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
The document does not provide information on the number or qualifications of experts used to establish ground truth for any image comparisons or evaluations.
4. Adjudication method for the test set:
The document does not specify any adjudication method for a test set.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:
No MRMC comparative effectiveness study is mentioned. The device described is a digital radiography system, not an AI-assisted diagnostic tool.
6. If a standalone (i.e. algorithm only without human-in-the loop performance) was done:
The device is a hardware component (flat panel detector) for digital radiography. It is not an algorithm that performs image analysis in a "standalone" fashion as would be discussed for AI. The performance is related to its image capture capabilities, implying a human-in-the-loop for interpretation.
7. The type of ground truth used:
The document implies "image quality evaluation" and "non-clinical image comparisons." The nature of the "ground truth" for these evaluations is not explicitly stated. For "image quality," it could refer to objective metrics, visual assessment against a reference, or comparison to known image characteristics. For "non-clinical image comparisons," it likely refers to direct comparison of images from the new device versus predicate devices. This is not a clinical ground truth derived from pathology or patient outcomes.
8. The sample size for the training set:
The document describes a hardware device. There is no mention of a training set in the context of an algorithm or AI model.
9. How the ground truth for the training set was established:
As there is no training set mentioned for an algorithm, this information is not applicable.
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