{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T14:07:55Z","timestamp":1786975675402,"version":"build-2736575974"},"reference-count":27,"publisher":"American Medical Association (AMA)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Netw Open"],"abstract":"\n Importance<\/jats:title>\n As of September 2024, federal legislation mandates that patients be informed of their breast density, a modest breast cancer risk factor and known cancer-masking agent. This binary metric, dense vs nondense, applies to 40% to 50% of women and is subjectively assessed with interreader variability, limiting its utility for guiding supplemental imaging.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n To compare the performance of a deep learning (DL) breast cancer risk model vs radiologist-assessed breast density in estimating future breast cancer and false-negative (FN) screening results.<\/jats:p>\n <\/jats:sec>\n \n Design, Setting, and Participants<\/jats:title>\n This retrospective cohort study included consecutive bilateral screening mammograms from women 30 years or older performed from January 1, 2009, to December 31, 2018, across 5 sites of a large academic health system, with follow-up through December 31, 2023, to allow ascertainment of 5-year breast cancer outcomes.<\/jats:p>\n <\/jats:sec>\n \n Exposures<\/jats:title>\n A DL risk model applied to standard screening mammograms and radiologist-assessed breast density categorized using the American College of Radiology Breast Imaging Reporting and Data System (BI-RADS) Atlas.<\/jats:p>\n <\/jats:sec>\n \n Main Outcomes and Measures<\/jats:title>\n Primary outcomes were breast cancer diagnoses within 5 years of mammography and FN screening results, defined as BI-RADS 1 or 2 examinations followed by a cancer diagnosis within 1 year. DL risk scores were stratified as low (&amp;lt;1.7%), intermediate (1.7%-3.0%), or high (&amp;gt;3.0%). Cancer and FN rates were compared across DL risk groups and breast density categories. Discriminatory performance was assessed using the area under the receiver operating characteristic curve (AUROC) and compared using the DeLong test.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n Among 123\u202f091 mammograms in 67\u202f019 women (median [IQR] age, 58.0 [50.0-67.0] years), 50 974 (41.4%) were classified as dense. The DL model demonstrated significantly higher discriminatory accuracy than breast density in predicting future cancer (AUROC, 0.71 [95% CI, 0.70-0.72] vs 0.53 [95% CI, 0.52-0.54];\n P<\/jats:italic>\n \u2009&amp;lt;\u2009.001). FN rates increased across DL risk groups (2.1 per 1000 examinations in high-risk vs 1.0 and 0.6 in intermediate and low-risk groups, respectively). Women with dense breasts had higher FN rates than those with nondense breasts (1.7 vs 0.6 per 1000 examinations;\n P<\/jats:italic>\n \u2009&amp;lt;\u2009.001). Adding breast density to the DL model did not improve performance.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions and Relevance<\/jats:title>\n In this cohort study of screening mammography, a DL risk model outperformed breast density in estimating risk of future breast cancer and stratified FN screening results across risk groups. These findings support transitioning from density-based policy triggers toward more precise image-derived risk models to guide access to supplemental imaging.<\/jats:p>\n <\/jats:sec>","DOI":"10.1001\/jamanetworkopen.2026.10559","type":"journal-article","created":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T15:00:20Z","timestamp":1777906820000},"page":"e2610559","source":"Crossref","is-referenced-by-count":1,"title":["A Deep Learning Breast Cancer Risk Model for Precise Supplemental Screening"],"prefix":"10.1001","volume":"9","author":[{"given":"Leslie R.","family":"Lamb","sequence":"first","affiliation":[{"name":"Department of Radiology, Massachusetts General Hospital, Boston"},{"name":"Harvard Medical School, Boston, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah F.","family":"Mercaldo","sequence":"additional","affiliation":[{"name":"Department of Radiology, Massachusetts General Hospital, Boston"},{"name":"Harvard Medical School, Boston, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew","family":"Carney","sequence":"additional","affiliation":[{"name":"Department of Radiology, Massachusetts General Hospital, Boston"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Constance D.","family":"Lehman","sequence":"additional","affiliation":[{"name":"Department of Radiology, Massachusetts General Hospital, Boston"},{"name":"Harvard Medical School, Boston, Massachusetts"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10","published-online":{"date-parts":[[2026,5,4]]},"reference":[{"issue":"7","key":"zoi260321r4","doi-asserted-by":"publisher","first-page":"457","DOI":"10.7326\/M15-2934","article-title":"Variation in mammographic breast density assessments among radiologists in clinical practice: a multicenter observational study.","volume":"165","author":"Sprague","year":"2016","journal-title":"Ann Intern 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