1. From the Centro Cardiologico Monzino (D.A., G.P., A.L.B., P.A., M.S., E.B., D.T., G.C., S.C., A.A., G.B., M.P.), IRCCS, Institute of Cardiology, University of Milan, Italy; and the Department of Radiology (A.C.), San Paolo Hospital, University of Milan, Italy.