Left atrial appendage blood flow analysis using four-dimensional flow magnetic resonance imaging. - Ohkawa A; Nakajima T; Tsushima S; Hosaka I; Arihara A; Yasuda N; Shibata T; Nakazawa J; Tachibana K; Nakanishi M; Iba Y; Kawaharada N (General thoracic and cardiovascular surgery, 2026)