Method for intravascular ultrasound multi-slice shear wave elastography

Abstract

The invention discloses a method for intravascular ultrasound multi-slice shear wave elastography. The method comprises the following steps of recording an original ultrasound echo signal of a tissue to be detected; enabling an interventional ultrasound array probe to generate acoustic radiation force by virtue of a short-pulse signal controlled by a computer; emitting ultrasonic pulse beams for many times to accept and detect a propagation process of shear waves generated by the acoustic radiation force; analyzing the propagation speed of the shear waves in the tissue to be detected to obtain a wave speed distribution image of the shear waves in the tissue; performing wave speed mapping on the shear waves at each position in the tissue to be detected to obtain a quantitative elastic image of the intravascular tissue. The method has the advantages of real time performance, quantification, high speed, high resolution and the like; a multi-array element intravascular transducer array is used for performing vascular wall tissue elastic information quantitative analysis to excite and track the shear waves; the further popularization and application of intravascular elastography are favorably promoted, and the early diagnosis capability of people in cardiovascular diseases is enhanced.

Description

technical field [0001] The invention relates to an interventional intravascular ultrasonic elastography method, in particular to an elastography method for quickly detecting blood vessel elasticity information in blood vessels by using shear wave elastography technology. Background technique [0002] "China Cardiovascular Disease Report 2012" pointed out that cardiovascular and cerebrovascular diseases have become the number one killer of Chinese people's health in recent years. It is estimated that there are 230 million patients with cardiovascular diseases nationwide, and 3.5 million people die of cardiovascular diseases nationwide every year, accounting for about 41% of all-cause deaths. %, ranking first among all causes of death. The report also predicts that from 2010 to 2030, only considering the factors of population aging and population increase, the number of cardiovascular disease (angina pectoris, myocardial infarction, sudden death of coronary heart disease and s...

AI Technical Summary

Problems solved by technology

At present, the international experimental equipment using intravascular ultrasound imaging technology mainly includes the Eagle Eye? Platinum Catheter produced and developed by Volcano Company of the United States, but there is no special device for exciting the blood vessel wall tissue to generate shear waves and capture the process of shear wave propagation. Intravascular Ultrasound Array Probe

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