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510(k) Data Aggregation
(89 days)
Imaging of: The Whole Body (including head, abdomen, breast, heart, pelvis, joints, neck, TMJ, spine, blood vessels, limbs and extremities). [Application terms include MRCP (MR Cholangiopancreatography), MR Cisternography, MR Urography, MR Myelography, MR Fluoroscopy, SAS (Surface Anatomy Scan), Dynamic Scan, Cine Imaging, and Cardiac tagging.] Fluid Visualization 2D/3D Imaging MR Angiography/MR Vascular Imaging Blood Oxygenation Level Dependent (BOLD) Imaging Diffusion Imaging The EPI Plus optional package adds the following to the above indications: Perfusion Imaging
This submission consists of a new Magnetic Resonance Imaging system which is based primarily on the cleared EXCELARTTM (K990620) with the following new functions added to the standard system. • Pianissimo: Gradient acoustic reduction system • QD Whole Body coil • QD Head coil • QD C/T/L Spine Array coil • 18.1" LCD flat screen monitor • Increase of SAR limit from
This document is a 510(k) Premarket Notification for a Magnetic Resonance Diagnostic Device Accessory (MRI system), specifically the EXCELART™ with Pianissimo. The submission is focused on demonstrating substantial equivalence to a predicate device, rather than proving performance against specific acceptance criteria for a novel AI algorithm or diagnostic tool.
Therefore, many of the requested categories (e.g., sample sizes for test/training sets, ground truth establishment, expert qualifications, MRMC studies, standalone performance) are not applicable or not explicitly detailed in this type of submission for this kind of device. The focus here is on the safety and performance characteristics of the MRI system itself and its accessories.
Here's a breakdown based on the provided text, indicating what information is available and what is not:
1. Table of Acceptance Criteria and Reported Device Performance
For an MRI system, performance is generally evaluated against safety parameters and imaging capabilities rather than diagnostic accuracy metrics. The document specifies safety parameters and imaging volumes.
Acceptance Criteria Category | Acceptance Criteria (from text) | Reported Device Performance (from text) |
---|---|---|
Safety Parameters | ||
Maximum static field strength | - (Implied to meet predicate's 1.5T) | 1.5T |
Rate of change of magnetic field | - (Implied to meet predicate's ~19.5 T/sec.) | 19.35 T/sec. (Pianissimo) vs 19.5 T/sec (EXCELART™) |
Maximum radio frequency power (SAR) |
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(209 days)
Imaging of:
- The Whole Body (including head, abdomen, pelvis, limbs and extremities, spine, neck, TMJ, -The whole body (including reast). [Application terms include MR Fluoroscopy, MR Irography, MRCP (MR Cholangiopancreatography), MR Myelography, SAS (Surface Anatomy Scan), Dynamic Scan and Cine Imaging.]
- Fluid Visualization -
- 2D/3D Imaging -
- MR Angiography/MR Vascular Imaging -
This submission consists of three upgrades to the MRT-150/H1 and MRT-150/F1 (VISART™) system. The first upgrades the software from V3.1 (which was the software cleared with the VISART™ in K961092) to V3.5. The second is the introduction of the VISART™/Hyper system, which increases the gradient field strength over that of the standard VISART™ with V3.5 software. The third is the introduction of optional phased array coils.
The provided text describes a 510(k) summary for a Magnetic Resonance Device (MRT-150/H1, MRT-150/F1, MRT-150/H2, MRT-150/F2, marketed as VISART and VISART/Hyper). It introduces upgrades to the software (from V3.1 to V3.5) and hardware (VISART/Hyper system with increased gradient field strength and optional phased array coils).
Here's an analysis based on the information provided, specifically addressing the questions you've posed:
1. Table of Acceptance Criteria and Reported Device Performance:
The document describes safety and imaging performance parameters for the device. While explicit "acceptance criteria" for a study aren't clearly defined as pass/fail thresholds in the typical sense for a clinical study, the specifications listed for the upgraded devices represent the targeted performance that was demonstrated to be met.
Parameter (Acceptance Criteria) | Reported Device Performance (VISART™ V3.5) | Reported Device Performance (VISART™/Hyper V3.5) |
---|---|---|
Max static field strength | 1.5T | 1.5T |
Rate of change of magnetic field (τ = 1000ms) | 13.3T/sec | 19.5T/sec |
Max. Radio frequency power deposition |
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