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510(k) Data Aggregation

    K Number
    K241425
    Device Name
    AspenView
    Date Cleared
    2025-02-12

    (268 days)

    Product Code
    Regulation Number
    892.2050
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    AspenView is indicated for use in general radiographic images of human anatomy. It is intended to replace radiographic film/screen systems in all general-purpose diagnostic procedures (excluding fluoroscopic, angiographic, and mammographic applications). The main features of this software are storing acquired images, data management, image processing and image stitching.

    Device Description

    AspenView software is designed for use by radiologists and radiology technicians for annotation in the X-ray images. The AspenView software is developed to use Aspen Imaging Flat Panel DR Detector and Aspen Imaging Healthcare Inc Image Viewer. The purpose of AspenView software is for the doctor to annotate X-ray images and then to print out with patient information or sent to another PACS system.

    A client user needs to install AspenView first in the recommended PC environment. After installation, the client user chooses a DICOM format in the uploaded patient list to be annotated, and then annotation is written by user after reviewing of image chosen. After annotation has completed it can be printed out, saved or sent to another PACS system.

    AspenView software includes an image stitching function to read multiple medical images at one time by stitching them to one image based on overlapping areas. It supports DICOM 3.0 which is standard of medical image format as well as Tiff and Raw images. It provides additional functions such as image retrieval, storage, and transmission.

    AI/ML Overview

    The provided document is a 510(k) summary for the AspenView device. It outlines the general characteristics of the device and its claimed substantial equivalence to a predicate device. However, it does not contain the specific acceptance criteria, study design, or performance data that would be required to answer all parts of your request regarding the device's performance against acceptance criteria.

    Specifically, the document states:

    • "Safety testing and documentation was performed in accordance with IEEE 1012-2012, Standard for System and Software Verification and Validation. [AspenView-SVsR]" (Page 6)
    • "Software information is provided in accordance with FDA guidance: 'The content of premarket submissions for software contained in medical devices.'" (Page 6)
    • "Cybersecurity information is provided in accordance with FDA guidance: 'Cybersecurity in Medical Devices: Quality System Considerations and Content of Premarket Submissions'" (Page 6)

    These statements indicate that studies and documentation were performed to demonstrate safety and effectiveness, but the actual results, the acceptance criteria for those results, and the details of how ground truth was established are not included in this summary.

    Therefore, many of the requested details cannot be extracted from this document.

    Here's what can be answered based on the provided text, and what remains unknown:


    Acceptance Criteria and Device Performance:

    The document does not provide a table of acceptance criteria or specific reported device performance metrics (e.g., sensitivity, specificity, accuracy) for a clinical performance study. It primarily focuses on the device's functional equivalence to its predicate.

    Information that Cannot Be Extracted from the Provided Text:

    1. A table of acceptance criteria and the reported device performance: Not provided. The document states "Safety testing and documentation was performed," but the specific performance results and their corresponding acceptance criteria are not included in this 510(k) summary.
    2. Sample sized used for the test set and the data provenance: Not provided.
    3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not provided, as details of specific performance studies are absent.
    4. Adjudication method (e.g., 2+1, 3+1, none) for the test set: Not provided.
    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 provided. The device description mentions annotation features, but not AI assistance for human readers.
    6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not explicitly stated or detailed. The primary function described is image management, processing, and stitching, not an AI diagnostic algorithm requiring standalone performance evaluation in the typical sense.
    7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.): Not provided.
    8. The sample size for the training set: Not provided.
    9. How the ground truth for the training set was established: Not provided.

    Based on the provided text, the device (AspenView) is primarily a Medical Image Management and Processing System, including image annotation, measurement, processing, and stitching. It is stated to be substantially equivalent in function and intended use to its predicate device (EConsole1). The document asserts that "There are no significant differences between AspenView and the predicate device that would adversely affect the use of the product."

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    K Number
    K241346
    Date Cleared
    2024-11-07

    (178 days)

    Product Code
    Regulation Number
    892.1680
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The IODR1717 / IODR1417 / IODR1417-GF (Digital Flat Panel X-Ray Detector) is indicated as a digital imaging solution designed for providing the general radiographic diagnosis of human anatomy targeting both adults and children. It is intended to replace film-based radiographic diagnostic systems. Not to be used for mammography.

    Device Description

    The IODR1717 / IODR1417 / IODR1417-GF detectors are wired or wireless digital flat panel detectors that have been designed for faster, more streamlined approach to digital radiography systems. The IODR1717 / IODR1417 / IODR1417-GF detectors utilize a combination of propriety TFT and scintillator (Csl), and those and electronics are housed in one package. The detectors support an auto-trigger signal sensing technology that allows the detectors to be used without generator integration.

    The flat panel sensors of The IODR1717 / IODR1417 / IODR1417-GF are fabricated using thin film technology based on amorphous silicon technology. Electronically, the sensors are much like conventional photodiode arrays. Each pixel in the array consists of a light-sensing photodiode and a switching Thin Film Transistor (TFT) in the same electronic circuit. Amorphous silicon photodiodes are sensitive to visible light, with a response curve roughly comparable to human vision. The sensitivity of amorphous silicon photodiodes peaks in green wavelengths, well matched to scintillators such as Csl. The response has the excellent linearity of a charge-integrating-biased photodiode.

    Aspen\View software includes the basic functionality: generator control, detector control, firmware, image acquisition, image calibration and correction, image storage.

    AI/ML Overview

    The Aspen Imaging Healthcare IODR1717 / IODR1417 / IODR1417-GF Digital Flat Panel X-ray Detectors are evaluated against a predicate device (K223930). This submission focuses on demonstrating substantial equivalence based on technological characteristics and performance, rather than a clinical study with specific acceptance criteria on diagnostic accuracy for an AI-powered device.

    Here's an analysis of the provided text in relation to your request, with the caveat that this is a hardware device (digital X-ray detector) and not an AI algorithm for diagnosis. Therefore, many of your requested points, especially those related to AI effectiveness, human reader improvement, and expert-established ground truth for a diagnostic test set, are not directly applicable.

    1. Table of Acceptance Criteria and Reported Device Performance

    The submission establishes substantial equivalence by comparing the proposed device's performance characteristics to a legally marketed predicate device (K223930). The "acceptance criteria" here are implicitly that the proposed device's reported performance metrics are equivalent to or better than the predicate device.

    Performance MetricAcceptance Criteria (Predicate Device K223930)Reported Device Performance (IODR1717)Reported Device Performance (IODR1417)Reported Device Performance (IODR1417-GF)
    ScintillatorCsICsICsICsI
    Effective Pixel Area (IODR1717)425.04 x 425.6 mm425.04 x 425.6 mmN/AN/A
    Total Pixel Number (IODR1717)3,072 x 3,072 pixels3,072 x 3,072 pixelsN/AN/A
    Effective Pixel Area (IODR1417/GF)345.24 x 425.6 mmN/A345.24 x 425.6 mm345.24 x 425.6 mm
    Total Pixel Number (IODR1417/GF)2,560 x 3,072 pixelsN/A2,560 x 3,072 pixels2,560 x 3,072 pixels
    Pixel Pitch140um140um140um140um
    High Contrast Limiting Resolution (LP/mm)Max. 3.57Max. 3.57Max. 3.57Max. 3.57
    CommunicationWired/WirelessWired/WirelessWired/WirelessWired/Wireless
    DQE (0.5lp/mm, min.) - IODR1717/IODR141769%69%69%N/A (listed separately for IODR1417-GF only)
    DQE (0.5lp/mm, min.) - IODR1417-GF71%N/AN/A71%
    MTF (0.1lp/mm, min.) - IODR1717/IODR141797%97%97%N/A (listed separately for IODR1417-GF only)
    MTF (0.1lp/mm, min.) - IODR1417-GF98%N/AN/A98%
    Anatomical SitesGeneralGeneralGeneralGeneral
    Exposure ModeNormal Mode (Manual), AED ModeNormal Mode (Manual), AED ModeNormal Mode (Manual), AED ModeNormal Mode (Manual), AED Mode
    WirelessIEEE 802.11a/b/g/n/acIEEE 802.11a/b/g/n/acIEEE 802.11a/b/g/n/acIEEE 802.11a/b/g/n/ac

    2. Sample size used for the test set and the data provenance

    The document states that "Imaging performance test has been conducted according to: IEC 62220-1, Medical Electrical Equipment Characteristics of Digital X-ray Imaging Devices Part . 1-1: Determination of the Detective Quantum Efficiency Detectors Used in Radiographic Imaging." This standard describes methods for laboratory testing of detector performance, using phantoms and controlled X-ray beams. It is not equivalent to a clinical test set with patient data.

    Therefore, there is no information about a "test set" in the context of clinical images or patient data. The provenance of such clinical data (e.g., country of origin, retrospective/prospective) is not provided because such a test set was not used for this type of device submission.

    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 hardware device (digital X-ray detector) and not an AI-powered diagnostic algorithm, there was no clinical test set requiring expert interpretation or ground truth establishment in the diagnostic sense. The performance tests (DQE, MTF, resolution) are objective physical measurements.

    4. Adjudication method for the test set

    Not applicable, for the same reasons as point 3.

    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 is not an AI-powered diagnostic device, and no MRMC study was conducted or mentioned. The submission is for an X-ray detector, which is a component rather than a diagnostic interpretation system.

    6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done

    This question is geared towards AI/software. The IODR devices are digital flat panel X-ray detectors. They are hardware components for X-ray imaging. While they include "Aspen\View software" for "generator control, detector control, firmware, image acquisition, image calibration and correction, image storage", this software pertains to the operation and image processing of the detector itself, not diagnostic analysis or algorithms to be used standalone for diagnosis. Therefore, a standalone performance study in the sense of an algorithm for diagnostic interpretation was not done.

    7. The type of ground truth used

    The "ground truth" for the performance tests (DQE, MTF, resolution) is based on physical measurements using phantoms and standardized protocols as defined by IEC 62220-1-1. This is a technical standard for evaluating the intrinsic image quality characteristics of the detector, not pathological or clinical outcomes data.

    8. The sample size for the training set

    Not applicable. This is not an AI algorithm that requires a training set. The device itself is hardware.

    9. How the ground truth for the training set was established

    Not applicable, as there is no training set for an AI algorithm.

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