Disclosed is an ultrasonic diagnostic apparatus provided with a measurement position setting unit configured to set a region of interest in the cardiac muscle in the ultrasonic image displayed on the display unit, a tracking calculation unit configured to track the movement of the cardiac muscle at a plurality of measurement points in the region of interest, and a physical quantity calculating unit configured to calculate a specific physical quantity on the basis of the results of the tracking.The calculated specific physical quantity is displayed on the display unit.The tracking calculation unit tracks the measurement points using a plurality of first segmenting lines along the epicardium and the endocardium of the cardiac muscle and a plurality of second segmenting lines that are orthogonal to the second segmenting lines.
