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Knowledge That Moves Breast Imaging Forward

A growing library of practical insights, guides, and operational resources to help imaging centers improve follow-up, strengthen compliance, and make smarter decisions with confidence.

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The Knowledge HubStandard Read

What Is Breast Density?

Breast density describes the relative proportion of fibroglandular to fatty tissue visible on a mammogram. It simultaneously lowers mammographic sensitivity through a masking effect and functions as an independent risk factor for breast cancer. As of September 10, 2024, the MQSA Final Rule requires every facility to report density using a standardized four-category lexicon and include prescribed notification language in every patient lay letter.

Aug 20, 20265 min read
MammoCommunicateStandard Read

What Is a Lay Result Letter in Mammography?

The Mammography Quality Standards Act requires every certified facility to send each patient a plain-language results letter within 30 calendar days -- or within 7 days when findings are Suspicious or Highly Suggestive of Malignancy. The 2023 Final Rule, effective September 10, 2024, added mandatory breast density classification and exact FDA-prescribed notification language that facilities may not alter. This article covers what the letter must contain, how it differs from the technical report, and the evidence-based design principles that determine whether patients act on their results.

Aug 20, 20265 min read

What Is “Lost to Follow-Up” in Mammography?

Lost to follow-up (LTFU) is the operational state in which a patient with an unresolved positive mammogram assessment can no longer be reached after documented outreach has been exhausted. This article defines LTFU, distinguishes it from the earlier overdue state, quantifies its audit impact under MQSA, and outlines the closed-loop tracking architecture required to minimize its occurrence.

Aug 19, 20267 min read

What Is DCIS (Ductal Carcinoma In Situ)?

Ductal carcinoma in situ (DCIS) is a stage 0, noninvasive proliferation of abnormal cells confined within breast ducts. It is both a clinical entity with a non-obligate progression pathway to invasive cancer and a high-stakes audit outcome under MQSA. This article covers definition, epidemiology, diagnosis, treatment, and the operational closed-loop tracking requirements every facility must meet.

Aug 19, 20269 min read

Downstream Revenue Estimator: Methods and Validation Note

A complete, reproducible documentation of the Downstream Revenue Estimator's arithmetic: the three-tier revenue formulas, two-population detection logic, treatment blending, largest-remainder display rounding, a worked year-1 example, and the full 420-configuration validation matrix.

Aug 17, 20268 min read
MammoTrackStandard Read

Tracking-Surveillance in Medical Mammography Quality Auditing

Tracking is not compliance paperwork -- it is the closed-loop feedback mechanism that measures interpretive accuracy, identifies care gaps, and creates the conditions under which early-stage cancers are found before they progress. Here is what the MQSA floor requires and what robust surveillance adds.

Aug 17, 20267 min read

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