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510(k) Data Aggregation

    K Number
    K243221
    Manufacturer
    Date Cleared
    2024-11-27

    (51 days)

    Product Code
    Regulation Number
    892.2050
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    RadiForce RX570; RadiForce RX570-AR

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    This product is intended for use in clinical radiological images (including full-field digital mammography and digital breast tomosynthesis) for review, analysis, and diagnosis by trained medical practitioners.

    Device Description

    RadiForce RX570 is a color LCD monitor for viewing medical images including those of mammography. The color panel employs in-plane switching (IPS) technology allowing wide viewing angles and the matrix size (or resolution) is 2,048 x 2,560 pixels (5MP) with a pixel pitch of 0.165 mm. Since factory calibrated display modes, each of which is characterized by a specific tone curve (including DICOM GSDF), a specific luminance range and a specific color temperature, are stored in lookup tables within the monitor, the tone curve is e.g. DICOM compliant regardless of the display controller used. There are two model variations, RX570 and RX570-AR. The difference of the two variations is the surface treatment of the display screens; the surface treatment of the RX570 is Anti-Glare (AG) treatment and that of the RX570-AR is Anti-Reflection (AR) coating. Two RX570 monitors mounted on a single stand configuration is available identified by with "MD" like RX570-MD and RX570-AR-MD. RadiCS is application software to be installed in each workstation offering worry-free quality control of the diagnostic monitors including the RadiForce RX570 based on the QC standards and guidelines and is capable of quantitative tests and visual tests defined by them. The RadiCS and its subset, RadiCS LE, are included in this 510(k) submission as an accessory to the RadiForce RX570. RadiCS is Basic Documentation level and that it's being used unchanged from the predicate software. RadiCS supports the functions of the monitor RadiForce RX70 and it's not a medical imaging software.

    AI/ML Overview

    The provided document describes the EIZO RadiForce RX570; RadiForce RX570-AR medical display monitor and its substantial equivalence to predicate devices, the RadiForce RX560 and RadiForce GX540. It evaluates the device based on performance testing against predefined criteria.

    Here's a breakdown of the requested information based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    The document states that "The bench tests below were performed on the RadiForce RX570 following the instructions in 'Guidance for Industry and FDA Staff: Display Devices for Diagnostic Radiology' issued on September 28, 2022" and that "the display characteristics of the RadiForce RX570 meet the pre-defined criteria when criteria are set." However, it does not provide a specific table directly listing the acceptance criteria values alongside the measured device performance values.

    Instead, it lists the types of measurements performed and provides a general statement about meeting predetermined criteria and equivalence to predicate devices. For example, for DICOM GSDF conformance, it states "Verification of the conformance to DICOM GSDF as specified in Assessment of Display Performance for Medical Imaging Systems by AAPM Task Group 18 (TG18 guideline)," implying that the device met the DICOM GSDF conformance criteria.

    Therefore, a table cannot be fully generated with specific numeric acceptance criteria and performance data from the provided text. The document acts as a high-level summary of the testing performed and the conclusion reached.

    For a comprehensive table, access to the full test report would be needed. Based on the general statements, the interpretation is that the device did meet the criteria for each test:

    Acceptance Criteria Category/TestReported Device Performance
    Spatial Resolution (MTF)Met pre-defined criteria; equivalent to predicate device.
    Pixel Defects/FaultsMet pre-defined criteria.
    Miscellaneous ArtifactsNo artifacts observed; met pre-defined criteria.
    Temporal ResponseMet pre-defined criteria; equivalent to predicate device.
    LuminanceMet pre-defined criteria; equivalent to predicate device.
    DICOM GSDF ConformanceConformed to DICOM GSDF as specified in AAPM TG18.
    Angular Dependency of LuminanceMet pre-defined criteria; equivalent to predicate device.
    Luminance Non-uniformityMet pre-defined criteria as specified in TG18 guideline.
    Chromaticity Non-uniformityMet pre-defined criteria as specified in TG18 guideline.
    Luminance StabilityMet pre-defined criteria.
    Noise (NPS)Met pre-defined criteria.
    Display Reflections (specular, diffuse, haze)Met pre-defined criteria.
    Small-Spot Contrast RatioMet pre-defined criteria.
    Color Tracking and Gray TrackingMet pre-defined criteria.

    2. Sample Size Used for the Test Set and Data Provenance

    The document does not explicitly state a "sample size" for the test set in terms of number of devices or datasets. The testing appears to have been performed on the RadiForce RX570 device itself to assess its physical and technical characteristics.

    The testing methods are described as "bench tests" performed "following the instructions in 'Guidance for Industry and FDA Staff: Display Devices for Diagnostic Radiology'." This indicates the data provenance is from prospective bench testing conducted in a lab environment. There is no information about the country of origin of the data beyond the manufacturer being EIZO Corporation of Japan.

    3. Number of Experts Used to Establish the Ground Truth for the Test Set and Their Qualifications

    This information is not applicable to this submission. The device is a medical display monitor, not an AI or diagnostic software that requires human expert review to establish ground truth for performance evaluation in medical image interpretation. The "ground truth" for this device's performance is established by objective physical measurements based on industry standards and FDA guidance.

    4. Adjudication Method for the Test Set

    This information is not applicable. Since the performance evaluation relies on objective physical measurements and conformance to technical standards (e.g., DICOM GSDF, TG18 guidelines), there is no need for an adjudication method involving multiple experts.

    5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study

    A Multi-Reader Multi-Case (MRMC) comparative effectiveness study was not performed. This type of study is typically used for diagnostic AI systems or CADe/CADx devices to evaluate their impact on human reader performance. The RadiForce RX570 is a display monitor, and its performance is evaluated by its technical specifications and adherence to display standards, not by its effect on human readers' diagnostic accuracy.

    6. Standalone Performance

    A standalone performance evaluation was done. The entire Section 7, "Performance Testing," describes the standalone (algorithm-only, or in this case, device-only) performance testing of the RadiForce RX570. The device's characteristics (e.g., resolution, luminance, DICOM conformance) were measured directly against established technical guidelines and standards.

    7. Type of Ground Truth Used

    The ground truth used for this device's evaluation is primarily based on technical standards, physical measurements, and industry guidelines. Specifically, the document mentions:

    • "Guidance for Industry and FDA Staff: Display Devices for Diagnostic Radiology"
    • "Assessment of Display Performance for Medical Imaging Systems by AAPM Task Group 18 (TG18 guideline)"
    • "DICOM GSDF" (Grayscale Standard Display Function)

    8. Sample Size for the Training Set

    This information is not applicable. The RadiForce RX570 is a physical display device, not an AI algorithm that undergoes training.

    9. How the Ground Truth for the Training Set Was Established

    This information is not applicable for the same reason as above; there is no training set for a display monitor.

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