Patent ID: 8734351

Claim:
A diagnostic ultrasound system comprising: an ultrasound probe; an ultrasound cross-section data measuring unit configured to measure ultrasound cross-section data of a cross-section region of a subject with the ultrasound probe; a signal processing unit configured to process the measured ultrasound cross-section data and generating a cross-sectional image; an elastic-information computing unit configured to calculate an elastic information of tissue in the cross-section region on the basis of the measured ultrasound cross-section data and generating an elastic image of the cross-section region on the basis of the elastic information; a display device for displaying the cross-sectional image and/or the elastic image; an inputting unit configured to set a first region of interest set in a normal area of the subject in the elastic image displayed on the display device, and a second region of interest to be determined whether normal or not; and an indexing unit configured to calculate a ratio of average values of the elastic information of the first region of interest and the second region of interest to presume hardness of the second region of interest, the indexing unit is configured to calculate a ratio of the elastic information of the third region of interest and the sum of the elastic information of the first and the second regions of interest to compensate differences in magnitudes of compression forces.