Effects of Normal Aging on Left Ventricular Lusitropic, Inotropic, and Chronotropic Responses to Dobutamine
Keywords: بطن چپ; CMR, cardiovascular magnetic resonance; LV, left ventricular; PFi, pump function index; SBP, systolic blood pressure; ρ, slope of diastolic LV myocardial recoil;CMR-based recoil rate; τ, time constant of diastolic LV pressure decrease;measure of relaxatio