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The Affirm breast biopsy guidance system is an optional accessory for the Selenia Dimensions Mammography System. It is designed to allow the accurate localization of lesions in the breast in three dimensions. It is intended to provide guidance for interventional purposes (such as biopsy, pre-surgical localization or treatment devices).

The Affirm Breast Biopsy Guidance System is used with Selenia Dimensions 2D or with Selenia Dimensions 3D tomosynthesis. Lesion location can be obtained from either 2D stereotactic or 3D tomosynthesis image acquisition. Both stereotactic and 3D localization calculate a three dimensional location for percutaneous placement for biopsy, pre-surgical localization or treatment devices. Safety Features include: Automatic detection of mounting, latching, and connection of biopsy guidance module; C-arm motion disabled if biopsy guidance module is not locked in place; Automatic compression release disabled when biopsy guidance module installed; Motorized movement of biopsy device only under user control; Audible alert if biopsy device motion could result in mechanical interference.

The provided text describes a Special 510(k) Premarket Notification for the "Modified Affirm Breast Biopsy Guidance System." However, it does not contain the detailed acceptance criteria or the specifics of a study proving the device meets those criteria in the format requested.

The document states that the device "meets IEC 60601-2-45 Medical Electrical Equipment - Safety of Mammographic X-ray Equipment and Mammographic Stereotactic Devices" and that "Hologic successfully performed design control verification and validation tests in accordance with 21 CFR Part 820." It also mentions that "Accuracy can be verified during the biopsy process."

The core of this 510(k) submission is to demonstrate substantial equivalence to a predicate device (K103512), specifically regarding a software change that enables the use of 3D tomosynthesis calculations for lesion localization, in addition to the existing 2D stereotactic capabilities. The manufacturer asserts that the "3D tomosynthesis lesion location is substantially equivalent to and as safe and effective as the cleared Affirm Breast Biopsy Guidance System and poses no additional risks or hazards."

Without explicit reported device performance metrics or a detailed study description in the provided text, I cannot populate most of the requested table.

Here's a breakdown of what can and cannot be answered based on the input:

1. Table of Acceptance Criteria and Reported Device Performance:

2. Sample size used for the test set and the data provenance:

• Not specified in the provided text. The document refers to "design control verification and validation tests," but does not detail the specific test set size or data provenance (e.g., country of origin, retrospective/prospective nature).

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

• Not specified in the provided text.

4. Adjudication method for the test set:

• Not specified in the provided text.

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:

• No MRMC study is mentioned. The device is a guidance system for biopsy, not an AI-assisted diagnostic tool for human readers in the classical sense of an MRMC study. The "AI" component would be the 3D tomosynthesis calculations for localization, but the text focuses on its equivalence rather than reader improvement.

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

• The document implies that the "3D tomosynthesis lesion location" calculation itself was evaluated for "accuracy" and "substantial equivalence." This suggests an evaluation of the algorithm's output (lesion coordinates) as a standalone function, separate from a human interpreting images. However, specific details of such a standalone study (e.g., methodology, metrics, and number of cases) are not provided.

7. The type of ground truth used:

• The document states "Accuracy can be verified during the biopsy process." This strongly suggests that the ground truth for localization accuracy would be based on biopsy results or confirmation during the interventional procedure. However, it is not explicitly stated how this ground truth was used in specific verification or validation tests mentioned.

8. The sample size for the training set:

• Not specified in the provided text. This document is for a modified version of an already cleared device, primarily focusing on a software change. Details of the original device's training are not provided, nor are details of any specific training done for the 3D tomosynthesis algorithm.

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

• Not specified in the provided text.

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