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510(k) Data Aggregation
(89 days)
Imaging of: The Whole Body (including head, abdomen, pelvis, limbs and extremities, spine, neck, TMJ, heart, blood vessels). [Application terms include MRCP (MR Cholangiopancreatography), MR Urography, MR Myelography, MR Fluoroscopy, SAS (Surface Anatomy Scan), Dynamic Scan and Cine Imaging.] -Fluid Visualization -2D/3D Imaging Additional indications for v3.1, v3.2, & v3.3 (only) - MR Angiography/MR Vascular Imaging - Additional indication for v3.2 & v3.3 (only) - Water/Fat Imaging - Additional indication for v3.3 {only} Perfusion/Diffusion Imaging -
Versions v3.0/v3.1/v3.2/v3.3 software are a combination of modifications and the addition of new sequences to the existing software, which facilitate the acquisition and reconstruction of MR images. The four versions have the same base software features with certain additional features available in each subsequent version (see Comparison Table, Appendix B, for detailed description). A brief description follows: - v3.0: Based on v2.5 (K990260) with MR Angio and FASE sequences removed - v3.1: Based on v2.5 (K990260) - v3.2: Based on v2.6 (K990260) - v3.3: Based on v2.6 (K990260) with addition of Perfusion/Diffusion imaging
This 510(k) premarket notification describes an upgrade to an existing Magnetic Resonance Diagnostic Device, the OPART™ (Model MRT-600), to software versions v3.0, v3.1, v3.2, and v3.3, along with optional hardware items. The core of this submission is to demonstrate substantial equivalence to previously cleared versions and to justify new functionalities and increased safety parameters.
Here's an analysis based on the provided document:
1. Table of Acceptance Criteria and Reported Device Performance
The submission focuses on safety parameters and imaging performance. The "acceptance criteria" appear to be specified maximums for safety and a general "specification volume" for imaging. The "reported device performance" is essentially that the device operates within these stated limits and produces sample images.
Parameter | Acceptance Criteria | Reported Device Performance |
---|---|---|
Maximum static magnetic field strength | Specified (0.35 Tesla) | 0.35 Tesla (inherent to the device model) |
Rate of change of magnetic field | Specified (19 T/second) | 19 T/second (inherent to the device model) |
Maximum radio frequency power deposition (SAR) |
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(87 days)
Imaging of: The Whole Body (including head, abdomen, breast, pelvis, limbs and extremities, spine, neck, TMJ, heart, blood vessels). [Application terms include MRCP (MR Cholangiopancreatography), MR Urography, MR Myelography, MR Fluoroscopy, SAS (Surface Anatomy Scan), Dynamic Scan and Cine Imaging.] Fluid Visualization 2D/3D Imaging MR Angiography/MR Vascular Imaging
The Large and Medium Flexible QD Body coils are essentially a QD (quadrature) extension and a flexible version of the standard Body Coil. The extension consists of adding a saddle trace to the existing solenoid trace. The two independent RF traces have RF magnetic fields which are orthogonal (oriented at 90 degrees with respect to each other) to create a quadrature coil. The NMR signals from the two independent loops are sent to an RF front end where they are then amplified and combined (summed) to provide a resultant signal with improved signal-to-noise ratio. With the coil's flexibility. RF connectors are added which enable the coil to open for patient loading. This enables the coil to be placed directly on the patient pallet. The standard body coil requires the patient to lay on the patient pallet then the patient with pallet is slid through the body coil. An advantage of placing the patient directly on the coil is that the pallet does not go through the coil. Hence the pallet is not filling the coil. This enables the coil to be physically smaller, for improved signal to noise, without losing space for patient loading.
The provided document is a 510(k) Premarket Notification for a Magnetic Resonance Diagnostic Device Accessory (OPART™ MRT-600 Large and Medium Flexible QD Body coils).
This type of submission focuses on demonstrating substantial equivalence to a previously legally marketed device, not necessarily on proving that the device meets specific performance acceptance criteria through a rigorous independent study with defined metrics.
Therefore, the document does not contain the detailed information requested regarding acceptance criteria, reported device performance, sample sizes for test/training sets, expert qualifications, adjudication methods, MRMC studies, standalone performance studies, or how ground truths were established, as these are typically part of a comprehensive clinical study report, which is not included here.
Instead, the submission demonstrates "safety and effectiveness" by comparing the new device to a predicate device (Matrix 3000 Flexible Spine Coil, K964753) and stating that the modifications "do not raise new questions of safety or efficacy."
However, I can extract the safety and imaging performance parameters listed for the device, which might be considered "acceptance criteria" in a general sense for the device's operational characteristics, rather than diagnostic accuracy.
Here's a summary of what information is available in the provided text, structured to address your request as much as possible:
1. Table of Acceptance Criteria and Reported Device Performance
As noted, these are not diagnostic performance metrics, but rather operational specifications. The document implicitly states that the device meets these specifications as part of its design and intended function, making it substantially equivalent to the predicate.
Parameter | Acceptance Criteria (Stated Specification) | Reported Device Performance (Implied by design/equivalence) |
---|---|---|
Safety Parameters | ||
Maximum static field strength | 0.35 Tesla | 0.35 Tesla |
Rate of change of magnetic field | 19 T/second | 19 T/second |
Maximum radio frequency power deposition (SAR) |
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