Ultrasonic imaging system for elasticity measurement and method for measuring elasticity of biological tissue

Abstract

The invention relates to an ultrasonic imaging system for elasticity measurement. The ultrasonic imaging system comprises a probe, an ultrasonic imaging device, a controlling and processing device and a display device, wherein the probe comprises a low-frequency oscillation driving device for generating oscillation and forming a shearing wave propagating from human body surface to tissues, and an ultrasonic transducer array for sending an ultrasonic signal to the tissues and receiving an ultrasonic echo signal; the ultrasonic imaging device is used for driving the ultrasonic transducer array to send the ultrasonic signal and receive and process the ultrasonic echo signal according to loaded imaging parameters; the controlling and processing device is used for controlling the low-frequency oscillation driving device and the ultrasonic imaging device to process the ultrasonic echo signal so as to obtain a two-dimensional ultrasonic image and elasticity information of the tissues; and the display device is used for displaying the two-dimensional ultrasonic image and the elasticity information. The system and elasticity measuring method can simultaneously obtain the two-dimensional ultrasonic image and the elasticity information of the tissues, thereby improving clinical diagnosis accuracy; and the probe can realize precise positioning under the guiding of the two-dimensional ultrasonic image without considering displacement compensation, thereby improving convenience and accuracy of tissue elasticity measurement.

Description

【Technical field】 [0001] The invention relates to ultrasonic imaging technology, in particular to an ultrasonic imaging system for measuring elasticity and a method for measuring elasticity of biological tissue. 【Background technique】 [0002] Traditional B-mode ultrasound imaging is mainly used to obtain physiological structure information of biological tissues, and is not sensitive to early lesions, but the mechanical characteristics of biological tissues have changed significantly during early lesions. The mechanical characteristics such as elastic modulus (hardness) of biological tissues depend on the molecular composition and corresponding microstructure of biological tissues, and are closely related to their physiological and pathological characteristics. Diseased tissues and normal tissues often have mechanical characteristics such as elastic modulus (hardness) Therefore, the detection of changes in the mechanical characteristics of biological tissues can provide an i...

AI Technical Summary

Problems solved by technology

However, both the device and the method of ultrasonic elastography are relatively complicated, and the implementation is relatively difficult, which is very inconvenient in the process of obtaining elastic information of biological tissues.

Images