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Pulsed tissue Doppler imaging (TDI) of the mitral valve septal annulus at the longitudinal axis in healthy dogs
Sm: systolic velocity of the myocardium, Em: early diastolic velocity of the myocardium, Am: late diastolic velocity of the myocardium, IVCT: isovolumic contraction time, IVRT: isovolumic relaxation time, Dursm: Sm duration, DurEm: Em duration, DurAm: Am duration.
