1. An ultrasonic diagnostic apparatus comprising: a displacement measuring section for transmitting the ultrasonic waves from a probe to an object to be examined, receiving the reflected echo signals corresponding to the transmission of the ultrasonic waves, and measuring the displacement of organism tissues of the object based on the reflected echo signals; an elastic image constructing section for constructing the elastic images by obtaining the distortion or the elastic modulus from said displacement; and a display section for displaying the elastic images, wherein the ultrasonic diagnostic apparatus includes a scoring means for specifying the distorted state or elastic state according to the information on the elastic image being outputted from elastic image constructing section.