Figure 1. Envelope obtained from blood flow velocity recorded from a carotid artery with Modified Geometric Method (MGM). PSV, Peak Systolic Velocity; EDV, End Diastolic Velocity; dashed line, time averaged mean maximum velocity across the entire envelope of cardiac cycle (Vmean); VD, peak diastolic velocity; VI, velocity of incisura between systole and diastole wave; DN, dicrotic notch.
