Patent ID: 7666141

Claim:
An ultrasonic diagnostic apparatus comprising: a transmitting section for driving a probe that transmits an ultrasonic wave toward a subject; a receiving section for amplifying a reflected echo to generate a received signal, the reflected echo being produced by getting the ultrasonic wave reflected by a vital tissue and received at the probe; an image processing section for generating a tomographic image of the subject based on the received signal; a region setting section for setting an arbitrary range of the tomographic image as a region of interest; a motion information gathering section for getting the motion information of the subject at multiple measuring points, which have been set on the subject, based on the received signal; a property value calculating section for calculating the property measured values of multiple target tissues of the subject, specified by the multiple measuring points, by reference to the motion information; and a distribution plotting section, which gets the multiple property measured values and plots a frequency distribution of the property measured values based on the property measured values of the target tissues located within the region of interest that has been set by the region setting section; wherein the region setting section sets at least one boundary in the subject based on a characteristic of the received signal that is caused due to a difference in acoustic property in the subject, and wherein the distribution plotting section plots the frequency distribution of the property measured values for each of the regions defined by the boundary.