Ultrasonic elastic imaging system and method

Abstract

The invention relates to an ultrasonic elastic imaging system and method. The ultrasonic elastic imaging system comprises a control unit, an exciting unit, a probe and an ultrasonic signal processing unit. The probe comprises an ultrasonic sensor array, a vibration exciter and a pressure sensor. The control unit selects a work mode according to a received user instruction and converts the user instruction into a control signal. The exciting unit receives the controls signal and outputs a vibration exciting signal; the vibration exciter receives the vibration exciting signal and drives the probe to make periodical mechanical vibration; the ultrasonic signal processing unit receives the control signal, transmits and receives ultrasonic waves through the ultrasonic sensor array and performs signal processing on the received ultrasonic waves, and a processing result is sent to the control unit. An instantaneous elastic imaging probe and a B ultrasonic mode probe are combined. The B ultrasonic mode probe has the effects of transmitting and receiving ultrasounds and meanwhile has the function of vibrating an exciting source. Seamless switching of elastic imaging measurement and B ultrasonic mode measurement is achieved through the relevant imaging process and the relevant imaging algorithm. The problem that ultrasonic elastic imaging in the prior art is not accurate is solved.

Description

technical field [0001] The invention relates to B-ultrasonic imaging technology and instantaneous elastic imaging technology, in particular to an ultrasonic elastic imaging system and method. Background technique [0002] Transient elastography of the liver is based on ultrasonography, through the measurement of liver stiffness, to diagnose liver fibrosis in patients with chronic liver diseases, and to give grades accordingly. It consists of three key parts: a transducer that generates ultrasound waves and acts as a receiver for them; a probe that sits on the transducer and sends out low-frequency vibration waves; and a software program that records and analyzes the data. When measuring, the actual sampling time is less than 0.1 second, which fully avoids the influence of respiratory movement, and the entire inspection time is less than 10 minutes. The instrument measures the conduction velocity of the low-frequency elastic echo in the liver tissue according to the pulse ec...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the shortcoming that transient elastography in the prior art cannot be guided by B-ultrasound. The present invention provides an ultrasonic elastography system and method. Elastography does not need to replace the probe, and realizes seamless switching during operation, so that the operator can clearly observe the position of the part to be tested when performing instantaneous elastography, which improves the accuracy, success rate and consistency of the test

Images