ULTRASONIC DIAGNOSTIC APPARATUS AND METHOD OF ULTRASONIC IMAGING

摘要

An ultrasonic diagnostic apparatus according to an embodiment includes a setting unit, a transmitter, a signal processing unit, and an image generating unit. The setting unit sets a plurality of ROIs within a scanning region. The transmitter transmits an ultrasonic wave for displacement generation on a plurality of transmission conditions corresponding to the respective ROIs from an ultrasonic probe and transmits an ultrasonic wave for observation that observes a displacement generated by each transmission of the ultrasonic wave for displacement generation, from the ultrasonic probe a plurality of times. The signal processing unit analyzes a plurality of pieces of reflected wave data, acquires a plurality of pieces of displacement information, and calculates distribution information on the respective transmission conditions. The image generating unit generates a plurality of pieces of image data based on the pieces of distribution information and composite image data by composing the pieces of image data.

主权项

1. An ultrasonic diagnostic apparatus comprising:
a setting unit configured to set a plurality of regions of interest comprising a first region of interest and a second region of interest that is adjacent to the first region of interest in a depth direction or that partly overlaps with the first region of interest in the depth direction within a given scanning region; a transmitter configured to transmit an ultrasonic wave for displacement generation that causes a displacement in living tissue based on acoustic radiation force from an ultrasonic probe on a plurality of transmission conditions comprising at least a first transmission condition corresponding to the first region of interest and a second transmission condition corresponding to the second region of interest and to transmit an ultrasonic wave for observation that observes a displacement in living tissue within the scanning region, the displacement being generated along with each transmission of the ultrasonic wave for displacement generation, from the ultrasonic probe a plurality of times; a signal processing unit configured to analyze a plurality of pieces of reflected wave data corresponding to the respective ultrasonic waves for observation transmitted from the ultrasonic probe, to acquire a plurality of pieces of displacement information corresponding to the scanning region, and to calculate distribution information based on the pieces of acquired displacement information on the respective transmission conditions; and an image generating unit configured to, based on the pieces of distribution information corresponding to the respective transmission conditions, to generate a plurality of pieces of image data corresponding to the respective transmission conditions, and to generate composite image data obtained by composing the pieces of image data.