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Soft tissue and bone imaging of both lower extremities simultaneously as allowed by the MRI system. Magnetic resonance peripheral angiography.

The 1.5T PV Array, Catalog #155GE1501, interfaces with the G.E. 1.5 Tesla Signa® system. It has been designed and optimized to collect peripheral vascular image data in three overlapping coil groups. The multi-channel design utilizes the G.E. Phased Array Coil inputs and utilizes standard coil configuration files available on the G.E. Signa® Plasma or Mouse-Driven Screen. The coil form geometry has been formed to facilitate close coupling of the imaging coil's region-of-sensitivity to the anatomy of interest. The coil assembly comes with a comfort pad set to comfortably place the patient on the coil assembly.

This document is a 510(k) premarket notification for a medical device, specifically an MRI accessory coil. It focuses on demonstrating substantial equivalence to a predicate device rather than presenting a study for meeting specific acceptance criteria. Therefore, most of the requested information regarding acceptance criteria and a study to prove the device meets them, especially in the context of AI/algorithm performance, is not available in this type of submission.

Here's a breakdown of the available information based on your request, along with explanations for the missing elements:

1. A table of acceptance criteria and the reported device performance

This information is not present in the provided 510(k) summary. For MRI coils, acceptance criteria typically relate to performance metrics like signal-to-noise ratio (SNR), image uniformity, and artifact levels, often compared directly to the predicate device or established standards. However, these specific metrics and their performance results are not detailed in this summary, which focuses on the regulatory submission.

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

This information is not provided in the document. 510(k) summaries for devices like MRI coils generally do not detail "test sets" or "data provenance" in the way an AI/algorithm study would. Instead, performance is often demonstrated through engineering testing, phantom studies, and possibly limited human subject imaging (but not typically a large-scale clinical trial with detailed sample information for proving performance against set criteria).

3. 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)

This is not applicable and not provided. Establishing ground truth by experts is a concept relevant to diagnostic algorithms or AI systems where human interpretation is the benchmark. For an MRI coil, performance is assessed through technical measurements and image quality evaluations, not by expert consensus on diagnostic outcomes based on a "test set" in the traditional sense.

4. Adjudication method (e.g., 2+1, 3+1, none) for the test set

This is not applicable and not provided. Adjudication methods are used in studies involving human readers or interpretations, primarily in clinical trials or studies evaluating diagnostic accuracy, which is not the primary focus of this 510(k) submission for an MRI coil.

5. 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

This is not applicable and not provided. This document describes an MRI accessory coil, not an AI or algorithm-driven diagnostic system. Therefore, an MRMC study related to AI assistance is irrelevant to this submission.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done

This is not applicable and not provided. This document describes an MRI accessory coil, not an algorithm or AI system.

7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)

This is not applicable and not provided. As explained above, the concept of "ground truth" as used in diagnostic studies (e.g., from pathology or outcomes) is not relevant to the technical performance evaluation of an MRI coil in a 510(k) submission. Performance is typically a comparison of physical specifications and imaging characteristics to a predicate device.

8. The sample size for the training set

This is not applicable and not provided. Training sets are used for machine learning algorithms, which are not described in this 510(k) submission for an MRI coil.

9. How the ground truth for the training set was established

This is not applicable and not provided. As explained above, training sets and their ground truth are concepts relevant to AI/ML development, which is outside the scope of this particular medical device submission.

Summary of what the document does provide:

• Device Description: The 1.5T PV Array, Catalog #155GE1501, interfaces with the G.E. 1.5 Tesla Signa® system. It's designed to collect peripheral vascular image data in three overlapping coil groups, utilizing G.E. Phased Array Coil inputs. It has a coil form geometry for close coupling to the anatomy and includes a comfort pad set.
• Intended Use: Soft tissue and bone imaging of both lower extremities simultaneously, and magnetic resonance peripheral angiography.
• Substantial Equivalence: The document asserts that the modified device has the same technological characteristics as the unmodified device, with only minor changes to the size and physical orientation of individual elements. Materials, use, and safety features are equivalent. Both are receive-only MRI antennas.
• Predicate Device: Unmodified Device Tradename: Array Coil Model # 100GE1500 (Lower Extremity Quadrature Detection), 510(k) No. K933659.
• Regulatory Classification: Class II/Radiology/LNH, Product Code 90 MOS.

Conclusion:

The provided text is a 510(k) summary for an MRI accessory coil. Its purpose is to demonstrate substantial equivalence to a predicate device for regulatory clearance, not to present a detailed study on meeting specific diagnostic acceptance criteria with a rigorous clinical trial or AI performance evaluation. Therefore, most of the questions regarding acceptance criteria, study design, sample sizes, expert involvement, and ground truth establishment (especially in the context of AI) are not addressed in this type of document.

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