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510(k) Data Aggregation
(203 days)
To provide treatment planning and image-guided stereotactic radiosurgery and precision radiotherapy for lesions (e.g. arteriovenous malformations), tumors and conditions of the brain, base of skull (BOS), cervico-thoracic spine (CTS), head and neck.
The CyberKnife® System for Stereotactic Radiosurgery/Radiotherapy is a treatment planning, imaging, and treatment delivery system for image-guided stereotactic radiosurgery and precision radiotherapy. The treatment planning system provides 3-dimensional viewing of the patient anatomy with appropriate dose calculation of the target volume and surrounding tissue structures. The imaging system provides real-time, orthogonal x-ray images of the patient in the treatment position to verify treatment position and accuracy and provides information suitable for dynamically positioning and pointing a linear accelerator. The treatment delivery system consists of a linear accelerator which provides 6 MV x-rays. A six-access manipulator provides automated positioning and pointing of the linear accelerator. The treatment couch provides positioning of the patient.
The provided document is a 510(k) summary for the CyberKnife™ System, a medical device for stereotactic radiosurgery/radiotherapy. It focuses on the substantial equivalence to a predicate device and does not contain detailed information on acceptance criteria or a study proving that the device meets specific performance criteria.
Therefore, I cannot provide the requested information from the given text.
The document does not describe:
- A table of acceptance criteria and the reported device performance: The "Feature Comparison Chart" compares technological characteristics between the CyberKnife and a predicate device (Varian Clinac 600SR), but these are not presented as acceptance criteria for a new device's performance validation. For example, "Mechanical Isocenter Accuracy" is listed as "≥ 0.05 cm RMS for all treatment nodes" for the CyberKnife, which could be an acceptance criterion, but the context does not explicitly state it as such for a validation study. There is no accompanying "reported device performance" against such a criterion in the document.
- Sample size used for the test set and the data provenance: No information on any test set or data provenance is provided.
- Number of experts used to establish the ground truth for the test set and the qualifications of those experts: No information on experts or ground truth establishment for a test set is provided.
- Adjudication method for the test set: No information on an adjudication method is provided.
- If a multi-reader multi-case (MRMC) comparative effectiveness study was done, and the effect size: No information on an MRMC study is provided.
- If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: The CyberKnife is a treatment delivery system, not an algorithm in the typical sense this question implies for AI/diagnostic devices. The document does not describe standalone performance testing for software components.
- The type of ground truth used: No information on the type of ground truth for any study is provided.
- The sample size for the training set: The document describes a medical device, not a machine learning model, so there is no concept of a "training set" in this context.
- How the ground truth for the training set was established: Not applicable as there is no training set.
The document primarily focuses on establishing substantial equivalence in terms of technological characteristics and intended use compared to a predicate device, as required for 510(k) clearance by the FDA, rather than presenting a performance study with detailed acceptance criteria.
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(45 days)
The AnatoMark Noninvasive Head Reference System is an accessory for routine head MR that is designed to provide reproducible anatomical markers. The Head Reference System is designed to aid in patient positioning to achieve consistent anatomical images over multiple imaging sessions. The head localizer produces a set of six fiduciary marks on axial images that are positioned reproducibly with reference to stable anatomical structures internal to the patient's cranium. The fiduciary marks are also visible in CT images, making possible the co-registration of CT and MR images.
The AnatoMark Noninvasive Head Reference System is a simple device, worn externally on the head, designed for use in routine head or brain MRI to provide reference markers that are visible on magnetic resonance (MR) images. The AnatoMark Noninvasive Head Reference System is intended to provide fiduciary marks that are visible on magnetic resonance (MR) images. The device may also be used to provide MRI/CT co-registration of fiduciary marks. The device is worn externally on the head, is simple and non-invasive, and wearing it is somewhat similar to the wearing of eyeglasses. The device is intended to be used with the "scout" or localization image sequence to establish a reproducible reference plane within the MR system's imaging coordinate system for the subsequent imaging session. At each of three reference locations on the device there is a reference block that contains two reference tubes that appear on MR images. The reference marks are physically implemented as cylinders set in the reference block such that they are orthogonal to each other and cross at their midpoints. When imaged slightly out of plane of the midpoints, the cross-sections of the small cylinders appear as two fiduciary marks that are not side by side. When imaged in the plane of the midpoints, however, the fiduciary marks are side by side. By adjusting the plane of the images such that all three pairs of reference marks show side by side, a reproducible reference plane may be established.
The provided document is a 510(k) summary for the AnatoMark™ Noninvasive Head Reference System, seeking Substantial Equivalence to predicate devices. It describes the device's function and intended use but does not provide detailed acceptance criteria or a study report with specific performance metrics and statistical analyses. The submission focuses on demonstrating substantial equivalence rather than proving device performance against pre-defined acceptance criteria in a quantitative manner.
Therefore, much of the requested information cannot be extracted directly from this document. However, based on the provided text, here's what can be inferred or explicitly stated:
AnatoMark™ Noninvasive Head Reference System Study Information
1. Table of Acceptance Criteria and Reported Device Performance
Acceptance Criteria | Reported Device Performance |
---|---|
Explicit acceptance criteria are not mentioned in the document. The submission focuses on demonstrating "reproducible reference markers" and "accuracy substantially equivalent to the accuracy of the predicate device." | "Interneuron Pharmaceuticals has carried out testing of the device to demonstrate that it provides reproducible reference markers." |
"This testing indicated that the accuracy is substantially equivalent to the accuracy of the predicate device." |
2. Sample size used for the test set and the data provenance
- Test Set Sample Size: Not specified.
- Data Provenance: Not specified (e.g., country of origin, retrospective or prospective).
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
Not applicable/Not specified. The nature of the device (a physical marker system) would likely involve physical measurements of marker reproducibility rather than expert ground truth establishment for a diagnostic output.
4. Adjudication method for the test set
Not applicable/Not specified.
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 device is a passive reference system, not an AI-powered diagnostic tool, so an MRMC study comparing human readers with and without AI assistance is not relevant.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This is a physical device, not an algorithm. The testing would have focused on the physical accuracy and reproducibility of the markers themselves.
7. The type of ground truth used
The concept of "ground truth" as typically applied to diagnostic algorithms (e.g., pathology, outcomes data) is not directly applicable here. The "ground truth" in this context would likely be physical measurements of the position and reproducibility of the fiduciary marks relative to a known reference or across multiple imaging sessions.
8. The sample size for the training set
Not applicable. This device does not involve a "training set" in the context of machine learning.
9. How the ground truth for the training set was established
Not applicable.
Summary of Device Performance Claim:
The document states: "Interneuron Pharmaceuticals has carried out testing of the device to demonstrate that it provides reproducible reference markers. This testing indicated that the accuracy is substantially equivalent to the accuracy of the predicate device."
This claim of "substantial equivalence" is the central finding presented in the 510(k) summary, rather than a detailed report of reaching specific, quantitative acceptance criteria for the new device's performance. The "study" mentioned refers to this internal testing to support the substantial equivalence claim.
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