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510(k) Data Aggregation

    K Number
    K090045
    Date Cleared
    2009-01-28

    (21 days)

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

    COLOR LCD MONITOR, RADIFORCE RX320

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

    RadiForce RX320 is intended to be used in displaying and viewing digital images for diagnosis of X-ray or MRI, etc. by trained medical practitioners. RadiForce RX320 does not support the display of mammography images for diagnosis.

    Device Description

    RadiForce RX320 is a 54cm (21.2") Color LCD display for medical image viewing. RX320 displays high-definition medical imaging.

    AI/ML Overview

    The provided text describes a 510(k) summary for the EIZO NANAO CORPORATION's Color LCD Monitor, RadiForce RX320. This document primarily focuses on establishing substantial equivalence to a predicate device (RadiForce R31 and R31-C) rather than presenting a detailed study with acceptance criteria and performance data in the typical sense of a clinical trial for an AI/CAD product.

    The device is a medical display monitor, and its "performance" is evaluated based on its technical specifications compared to the predicate device. The acceptance criteria essentially revolve around demonstrating that the new device meets or exceeds the specifications of the predicate device, or that any differences do not raise new questions of safety and effectiveness.

    Here's a breakdown based on your request, with the understanding that the nature of the device (a monitor) means "performance" and "ground truth" are interpreted differently than for an AI diagnostic algorithm:

    1. A table of acceptance criteria and the reported device performance:
    Feature/Acceptance Criteria (Predicate R31/R31-C)Reported Device Performance (RX320)Meets/Exceeds
    Brightness: 400 cd/m²900 cd/m²Exceeds
    Contrast Ratio: 400:1 (typical)1000:1 (typical)Exceeds
    Response Time: 50 ms (typical)20 ms (typical)Exceeds
    Panel Size: 53 cm (20.8") TFT Color LCD54cm (21.2") TFT Color LCDExceeds (slightly larger)
    Pixel Pitch: 0.207 x 0.207mm0.21075 x 0.21075 mmSimilar (slightly larger pixel)
    Scanning Frequency (H, V): 31-127kHz, 59-61Hz31-127kHz, 29-61HzSimilar
    Native Resolutions: 2048 x 1536 (portrait)Same as R31 and R31-CMeets
    Display Colors: 10-bit: 1.06 billion (max)Same as R31 and R31-CMeets
    Viewing Angles: H: 170°, V: 170°Same as R31 and R31-CMeets
    Luminance Calibration: Software (Optional), Photo-sensor (Optional)Software (Optional), Photo-sensor (Optional), Digital Uniformity Equalizer (DUE)Exceeds (added DUE)
    Intended Use: Display and view digital images for diagnosis of X-ray or MRI etc. (excluding mammography)Same as predicateMeets

    Note: The acceptance criteria here are implicitly defined by the specifications of the predicate device. The new device demonstrates "substantial equivalence" by meeting or improving upon these key specifications.

    1. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective):

      • This is not applicable to a medical display monitor's 510(k) submission. The "test set" would be the device itself being tested for its physical and electrical characteristics, not a set of medical images. The document does not describe a study involving medical image data.
    2. 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):

      • Not applicable as no "ground truth" for medical image interpretation is established for this device submission. The device is a display, not a diagnostic algorithm.
    3. Adjudication method (e.g. 2+1, 3+1, none) for the test set:

      • Not applicable.
    4. 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 display monitor, not an AI/CAD system.
    5. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:

      • Not applicable. This is a hardware device (monitor), not an algorithm. Its "standalone performance" refers to its technical specifications (brightness, contrast, etc.) as listed in the table, which are inherently "algorithm-only" in the sense that they are physical measurements of the device's output.
    6. The type of ground truth used (expert consensus, pathology, outcomes data, etc):

      • Not applicable. The "ground truth" for a monitor is its adherence to technical manufacturing specifications and industry standards for display performance (e.g., luminance, contrast, resolution), measured using calibrated equipment. This document does not detail the specific test methods or "ground truth" sources used to verify these specifications, but it is implied to be standard engineering and quality control procedures.
    7. The sample size for the training set:

      • Not applicable. This device does not involve machine learning algorithms.
    8. How the ground truth for the training set was established:

      • Not applicable. No training set is involved for this device.
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