TTR and cardiac amyloidosis: In a study-level analysis of the held-out testing transthoracic echocardiographic set, our multi-label view-agnostic classifier successfully discriminated hypertrophic cardiomyopathy (AUROC curve 0·95, 95% CI 0·94–0·96) and transthyretin amyloid cardiomyopathy (0·98, 95% CI 0·96–0·99; appendix p 9).