Patent ID: 8465426

Claim:
An ultrasonic diagnostic apparatus comprising: a transmitting section configured to drive an ultrasonic probe to transmit an ultrasonic wave toward a measuring region of a subject including an arterial vascular wall; a receiving section configured to receive a reflected wave, produced by getting the ultrasonic wave reflected by the subject, at the ultrasonic probe to generate a received signal; a movement information deriving section configured to derive movement information about at least an axial movement of the arterial vascular wall based on the received signal, wherein the axial movement is movement in the direction in which the artery runs; and a boundary locating section configured to locate at least one of the blood flow-intima boundary, the media-adventitia boundary and the adventitia-body's connective tissue boundary of the arterial vascular wall in the measuring region based on the movement information, wherein the movement information comprises a radial distribution of the axial movement information at a plurality of radial positions along the radial direction of the arterial vascular wall.