2072 Rapid evaluation of left atrial volumes using CMR and its relation with left ventricular diastolic dysfunction

Methods 33 patients with a first episode of heart failure were evaluated using CMR. Patients with a severe valvular disease, atrial fibrillation or antecedent of coronary artery disease were excluded. Short and long-axis cines were performed to acquire the entire left ventricle and LA. LA end-systolic and end-diastolic volumes were estimated using the ellipsoidal formula from a bi-plane view. Mitral inflow velocity images were assessed using a phase-contrast velocity sequence. LVDD was classified into four categories: normal (E/A = 1–2 and deceleration time (DT) > 200 ms), impaired relaxation (E/A 2 and DT < 160 ms).