ULTRASONIC DIAGNOSIS DEVICE AND TRANSMISSION/RECEPTION METHOD

摘要

Provided is an ultrasonic diagnosis device that can measure hardness information of a subject at a high temporal resolution and spatial resolution. The present invention is provided with an ultrasonic probe (1) and a displacement generation unit (10) that causes the interior of a subject to be displaced. A displacement detection ultrasonic beam is transmitted from the ultrasonic probe (1) to a plurality of detection positions of the subject, and using the reflected signal detected by a detection unit (20), a control unit (3) detects a shear wave speed on the basis of the displacement of the plurality of detection positions, and outputs hardness information of the subject. The displacement detection ultrasonic beam is transmitted to one of the plurality of detection positions, the waveform analysis unit (26) of the control unit (3) analyzes the shear wave arising by means of the displacement, and performs switching control in a manner so that the displacement detection ultrasonic beam is transmitted to another one of the plurality of detection positions. As a result, it is possible to measure shear wave speed at a greater spatial resolution and temporal resolution, and it is possible to obtain hardness information of a subject at a high precision.