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510(k) Data Aggregation

    K Number
    K072191
    Date Cleared
    2007-10-25

    (80 days)

    Product Code
    Regulation Number
    892.1200
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The ClearVision nuclear medicine imaging system is intended for use as a diagnostic imaging device to acquire and process gated and non-gated Single Photon Emission Computed Tomography (SPECT) images.

    Used with appropriate radiopharmaceuticals, the ClearVision system produces images that depict the anatomical distribution of radioisotopes within the myocardium.

    Device Description

    The ClearVision Nuclear Medicine Imaging System acquires and processes cardiac data including gated and non-gated Single Photon Emission Computed Tomography (SPECT) studies. After completion of an acquisition, the operator can select the resulting acquisition data file to generate both qualitative and quantitative results for review by a physician. This includes processing using Release 5.6 of Segami Corporation's Mirage processing software that was previously cleared under 510(k) number K043441 dated 13-January-2005.

    The acquisition system consists of either a single or dual small field-of-view detectors with each mounted on top of a tower that contains system electronics. To support the acquisition of SPECT data, the patient chair rotates up to 360 degrees in either clockwise or counterclockwise direction.

    Prior to a patient scan, the following system features are used to ensure the myocardium is centered within each detector's field of view (FOV):

    • . Each tower can be moved horizontally along rails mounted to the floor plate.
    • . The patient chair seat pan can be moved side-to-side.
    • Vertical and a horizontal beam lasers are mounted to side of detector.

    The ClearVision system's compact footprint and small FOV detector are specifically designed for placement in a facility lacking adequate floor space for a typical nuclear medicine imaging system.

    AI/ML Overview

    The provided document is a 510(k) summary for the GVI Medical Devices ClearVision Nuclear Imaging System. It focuses on demonstrating substantial equivalence to a predicate device rather than presenting a detailed study with acceptance criteria and performance metrics for the ClearVision system itself.

    Therefore, much of the requested information regarding acceptance criteria, specific study designs, sample sizes, expert qualifications, and ground truth establishment is not available in this document. The document describes a comparison of features and performance characteristics to a predicate device (Digirad Cardius 1 XPO and Cardius 2 XPO SPECT Imaging Systems, K070542) to establish substantial equivalence.

    Here's a breakdown of what can be extracted and what is not available based on the provided text:

    1. Table of Acceptance Criteria and Reported Device Performance

    The document does not explicitly state "acceptance criteria" but rather presents a "Feature Comparison Summary" to demonstrate substantial equivalence to the predicate device. The performance characteristics listed are NEMA (National Electrical Manufacturers Association) standards, which are common for SPECT systems and implicitly serve as performance benchmarks.

    FeatureAcceptance Criteria (Predicate)Reported ClearVision PerformanceDoes it meet acceptance criteria?
    NEMA Reconstructed Spatial Resolution11.00 mm (for predicate)9.8 mm (central), 7.6 mm (tangential), 8.4 mm (radial)The ClearVision's spatial resolution values (smaller numbers indicate better resolution) are superior to the predicate's 11.00 mm, indicating it meets or exceeds this aspect.
    NEMA System Sensitivity160 cpm / uci (for predicate)147 cpm / uciClearVision's sensitivity is slightly lower than the predicate, but this is presented in the context of substantial equivalence, implying it is within an acceptable range for the intended use given other features. The document explicitly states "performs as well as the predicate".
    NEMA Energy Resolution
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    K Number
    K051402
    Date Cleared
    2005-06-13

    (13 days)

    Product Code
    Regulation Number
    892.1100
    Reference & Predicate Devices
    Predicate For
    N/A
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The OnePass nuclear medicine imaging system is intended for use as a diagnostic imaging device. Used with appropriate radiopharmaceuticals, it produces images that depict the anatomical distribution of radioisotopes within the human body. The OnePass system's compact footprint and small FOV detector are specifically designed for placement in a facility lacking adequate floor space for a typical nuclear medicine imaging system.

    The OnePass system's design is optimized for acquiring and processing cardiac first pass data. Firstpass radionuclide angiography (FPRNA) is used to assess left and right ventricular function at rest or during stress.

    Device Description

    The OnePass Nuclear Medicine Imaging System acquires and processes gated First Pass Radionuclide Angiography (FPRNA) images. After completion of acquisition, both qualitative and quantitative results are available for processing and analysis.

    The device consists of a vertical support, a single small FOV detector mounted on an articulating arm, a 15 in. color LCD acquisition display, and an acquisition and processing computer workstation. The OnePass system's small field-of-view (FOV) detector and small system footprint are designed for placement in a facility lacking adequate floor space for a typical nuclear medicine imaging system.

    AI/ML Overview

    The provided text is a 510(k) premarket notification for a medical device and does not contain the information requested regarding acceptance criteria, study details, sample sizes, expert qualifications, or ground truth establishment.

    The document states that the OnePass Nuclear Medicine Imaging System is a modification of a previously cleared device (K0233373) and that this modification provides a "slightly larger UFOV to aid the operator" and a "new software application to automatically archive system-specific data files." The submission asserts substantial equivalence based on comparable type, similar performance characteristics, same technological characteristics, identical key safety and effectiveness features, same basic design, and same intended use as the predicate device.

    The FDA's letter (K051402) acknowledges the substantial equivalence to a legally marketed predicate device, allowing the device to proceed to market. However, it does not describe specific acceptance criteria or an analytical or clinical study with the details requested in your prompt.

    Therefore, I cannot provide the requested table or answer the specific questions about acceptance criteria, study design, sample sizes, expert involvement, or ground truth for this device from the provided text. This type of information is typically found in detailed performance and clinical validation studies, which are not included in this summary of safety and effectiveness.

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    K Number
    K023373
    Date Cleared
    2003-01-03

    (87 days)

    Product Code
    Regulation Number
    892.1100
    Reference & Predicate Devices
    Predicate For
    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The OnePass nuclear medicine imaging system is intended for use as a diagnostic imaging device. Used with appropriate radiopharmaceuticals, it produces images that depict the anatomical distribution of radioisotopes within the human body. The OnePass system's compact footprint and small FOV detector are specifically designed for placement in a facility lacking adequate floor space for a typical nuclear medicine imaging system.

    The OnePass system's design is optimized for acquiring and processing cardiac first pass data. First-pass radionuclide angiography (FPRNA) is used to assess left and right ventricular function at rest or during stress.

    Device Description

    The OnePass Nuclear Medicine Imaging Systems acquires and processes gated First Pass Radionuclide Angiography (FPRNA) images. After completion of acquisition, both qualitative and quantitative results are available to the physician for analysis.

    The acquisition system consists of a single small field-of-view detector mounted on an articulating arm to allow precise positioning of the detector over the patient's heart. In addition, a vertical lift adjusts the detector height position to track changes in the incline of the treadmill to ensure camera remains positioned directly over the patient's heart during acquisition.

    AI/ML Overview

    The provided text is a 510(k) summary for the OnePass Nuclear Medicine Imaging System. It describes the device, its intended use, and claims substantial equivalence to a predicate device. However, it does not contain information about acceptance criteria, a study proving the device meets acceptance criteria, reported device performance metrics, sample sizes, ground truth establishment methods, or any details about human reader studies (MRMC or standalone).

    The document primarily focuses on:

    • Device identification: Name, classification, contact information.
    • Device description: How it acquires and processes gated First Pass Radionuclide Angiography (FPRNA) images using a single small field-of-view detector.
    • Intended Use: Diagnostic imaging to depict anatomical distribution of radioisotopes, specifically optimized for cardiac first pass data to assess left and right ventricular function.
    • Predicate Device: Scinticor SIM-400 System (K931193).
    • Claim of Substantial Equivalence: The OnePass is comparable and substantially equivalent to the SIM-400 for FPRNA studies, with the primary difference being that OnePass is optimized only for FPRNA, while SIM-400 can perform other study types.
    • Conclusion: No new safety risks, performs as well as the SIM-400 for FPRNA.
    • FDA Clearance Letter: A formal letter from the FDA granting clearance based on the substantial equivalence claim.

    Therefore, I cannot fulfill your request for the specific details regarding acceptance criteria, study design, and performance metrics as they are not present in the provided text. The document is a regulatory submission, not a detailed scientific study report.

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