{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T13:22:06Z","timestamp":1787923326804,"version":"build-2784847793"},"reference-count":41,"publisher":"American Medical Association (AMA)","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA"],"abstract":"\n Importance<\/jats:title>\n Transthyretin amyloid cardiomyopathy (ATTR-CM) is a treatable cause of heart failure, but diagnosis is often delayed. Accessible tools to prioritize confirmatory evaluation could reduce missed diagnoses when cardiac imaging is limited.<\/jats:p>\n <\/jats:sec>\n \n Objective<\/jats:title>\n To develop and validate a locally deployable artificial intelligence (AI)\u2013enabled system that identifies patients for further ATTR-CM evaluation from routine electrocardiography (ECG) images.<\/jats:p>\n <\/jats:sec>\n \n Design, Setting, and Participants<\/jats:title>\n This diagnostic test study used an AI-ECG model developed within Yale New Haven Health (using ECGs from August 2015-June 2023) and temporally validated (July 2023-July 2025). External validation included 5 multinational cohorts and 3 screening cohorts (older Black and Hispanic adults with heart failure; adults with prior carpal tunnel surgery; 99-3902 individuals per cohort).<\/jats:p>\n <\/jats:sec>\n \n Exposure<\/jats:title>\n Use of AI-ECG for detecting ATTR-CM from routine ECG images or raw 12-lead signals.<\/jats:p>\n <\/jats:sec>\n \n Main Outcomes and Measures<\/jats:title>\n Area under the receiver operating characteristic curve (AUROC), sensitivity, specificity, and positive and negative predictive values for ATTR-CM confirmed by cardiac amyloid radionuclide imaging (CARI) or biopsy. An exploratory analysis evaluated sequential screening with AI-ECG followed by AI-enabled echocardiography.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n Development used 28\u202f174 ECGs from 11\u202f291 patients (293 with ATTR-CM). In internal validation (44\u202f123 patients; mean age, 68.5 years; 49.7% female), AUROC was 0.84 (95% CI, 0.79-0.89), with sensitivity of 0.72 and specificity of 0.86 at the prespecified threshold, and was maintained in a specificity stress test among patients with features that mimic ATTR-CM (left ventricular hypertrophy or severe aortic stenosis without amyloid; AUROC, 0.81 [95% CI, 0.75-0.86]) and those referred for CARI (AUROC, 0.78 [95% CI, 0.73-0.84]). Across 5 external cohorts, AUROCs ranged from 0.78 to 0.89. In 3 screening cohorts, AUROCs were 0.76 (95% CI, 0.68-0.83) in the SCAN-MP study (n\u2009=\u2009645) and 0.79 (95% CI, 0.65-0.93) and 0.91 (95% CI, 0.82-0.97) in 2 CACTUS study cohorts (n\u2009=\u2009251, n\u2009=\u2009121). Sequential AI-ECG and AI-enabled echocardiography increased the positive predictive value from 0.24 to 0.66 and reduced sensitivity from 0.84 to 0.68.<\/jats:p>\n <\/jats:sec>\n \n Conclusions and Relevance<\/jats:title>\n Locally deployable AI applied to ECG images discriminated ATTR-CM across multinational retrospective and screening cohorts. This approach may provide an accessible first step to prioritize selected patients for echocardiography and confirmatory imaging, although intended use and calibration require prospective evaluation.<\/jats:p>\n <\/jats:sec>","DOI":"10.1001\/jama.2026.16785","type":"journal-article","created":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T12:30:17Z","timestamp":1787920217000},"source":"Crossref","is-referenced-by-count":0,"title":["Electrocardiogram-Based Deep Learning to Prioritize Testing for Transthyretin Amyloid Cardiomyopathy"],"prefix":"10.1001","author":[{"given":"Philip M.","family":"Croon","sequence":"first","affiliation":[{"name":"Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut"},{"name":"Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut"},{"name":"Department of Cardiology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bruno","family":"Batinica","sequence":"additional","affiliation":[{"name":"Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lovedeep S.","family":"Dhingra","sequence":"additional","affiliation":[{"name":"Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut"},{"name":"Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryan B.","family":"Choi","sequence":"additional","affiliation":[{"name":"Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evangelos K.","family":"Oikonomou","sequence":"additional","affiliation":[{"name":"Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut"},{"name":"Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sumukh V.","family":"Shankar","sequence":"additional","affiliation":[{"name":"Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut"},{"name":"Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Veer","family":"Sangha","sequence":"additional","affiliation":[{"name":"Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut"},{"name":"Cardiovascular Data Science (CarDS) Lab, Yale School of Medicine, New Haven, Connecticut"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert M. A.","family":"van der Boon","sequence":"additional","affiliation":[{"name":"Thoraxcenter, Cardiovascular Institute, Erasmus Medical Center, Rotterdam, the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michelle","family":"Michels","sequence":"additional","affiliation":[{"name":"Thoraxcenter, Cardiovascular Institute, Erasmus Medical Center, Rotterdam, the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maarten","family":"van Ettinger","sequence":"additional","affiliation":[{"name":"Thoraxcenter, Cardiovascular Institute, Erasmus Medical Center, Rotterdam, the Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter-Paul","family":"Zwetsloot","sequence":"additional","affiliation":[{"name":"Thoraxcenter, Cardiovascular Institute, Erasmus Medical Center, Rotterdam, the 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Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oscar M.","family":"Westin","sequence":"additional","affiliation":[{"name":"Heart Center, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sie K.","family":"Fensman","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steen Hvitfeldt","family":"Poulsen","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Avneet","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Northwell Health, New York, New 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