Shear wave elastic imaging method and device

Abstract

The invention relates to a shear wave elastic imaging method and device. The method comprises the steps of obtaining sampling data of a subject to be detected, wherein the sampling data comprises ultrasonic image data of a rectangular coordinate system; conducting coordinate transformation on the ultrasonic image data of the rectangular coordinate system so as to transforming the ultrasonic image data of the rectangular coordinate system into the ultrasonic image data of a polar coordinate system; conducting treatment on the ultrasonic image data of the polar coordinate system through a preset processing method so as to obtain shear wave elastic imaging used for representing an elasticity modulus of the subject to be detected; conducting visual processing on the shear wave elastic imaging so as to be used for the elasticity modulus of the subject to be detected. The shear wave elastic imaging of the subject to be detected is achieved based on coordinate change, and a shear wave of a long-axis tangent plane and the shear wave of a short-axis tangent plane are subjected to treatment so as to obtain an precise elastic quantitative of the subject to be detected, and to improve pathological detection precision of the subject to be detected.

Description

technical field [0001] The present invention relates to the field of ultrasonic medical technology, and more particularly to a shear wave elastography method and device. Background technique [0002] Ultrasound imaging is widely used in clinical diagnosis due to its real-time, cheap, non-invasive and non-ionizing radiation advantages. Ultrasound elastography, especially shear wave imaging based on acoustic radiation force, plays a huge role in the qualitative and quantitative measurement of tissue elasticity, for example, vascular shear wave elastography is crucial for the quantification of vessel wall elasticity effect. However, due to some characteristics of some tissues, the shear wave elastography in the related art cannot accurately characterize and quantify the elasticity. Taking blood vessels as an example, blood vessels have anisotropic properties, so that when the blood vessels are sheared During wave elastography, it is necessary to consider both the shear wave o...

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Problems solved by technology

However, due to some characteristics of some tissues, the shear wave elastography in the related art cannot accurately characterize and quantify the elasticity. Taking blood vessels as an example, blood vessels have anisotropic properties, so that when the blood vessels are sheared During wave elastography, it is necessary to consider both the shear wave of the long-axis section and the shear wave of the short-axis section of the blood vessel. The shear wave elastography in the related art can only perform shear wave elastography on the long-axis section of the blood vessel. It will cause inaccurate quantification of blood vessel elasticity and reduce the accuracy of pathological detection of blood vessels

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