Multi-parameter real-time monitoring imaging system based on ultrasonic echo backscattering energy change

Abstract

The invention discloses a multi-parameter real-time monitoring imaging system based on ultrasonic echo backscattering energy change. Firstly, ultrasonic treatment and imaging monitoring are controlled through long and short time division sequences; multiple frames of ultrasonic envelope data are collected in real time in an ultrasonic monitoring short-time sequence; then the invention also includes changing the estimation window length from coarse to fine, performing window-by-window estimation and single-pixel traversal on the whole single-frame ultrasonic envelope energy data, performing calculation to obtain a pixel point backscattering energy change amount, then calculating a multi-time-space composite ultrasonic echo backscattering energy change mean value matrix, and finally, performing coordinate transformation and pseudo-color coding to realize multi-parameter ultrasonic treatment real-time monitoring imaging. Compared with conventional ultrasonic parameter imaging, the contrast ratio and robustness of multi-parameter real-time monitoring imaging based on multiple space-time composite backscattering energy changes are obviously improved.

Description

technical field [0001] The invention belongs to the field of ultrasonic imaging, and in particular relates to a high-sensitivity multi-parameter ultrasonic treatment real-time monitoring imaging technology based on multi-temporal-scale compound ultrasonic echo backscattering energy changes. Background technique [0002] Ultrasound imaging has the advantages of no ionizing radiation, portability, compatibility and easy integration in interventional treatment procedures, and has the ability of fast real-time feedback and target positioning, and has been used to monitor and guide ultrasound treatment. Ultrasound therapy, including thermal ablation therapy, has been widely used in the treatment of various solid tumors. In thermal ablation therapy, ultrasound real-time monitoring imaging can be used for positioning before treatment, monitoring and feedback control during treatment, and postoperative evaluation. [0003] Imaging techniques based on ultrasound parameters can be use...

AI Technical Summary

Problems solved by technology

However, the estimation of backscattered energy changes in the lesion area will be affected by the fixed window length and the singular value on the window length boundary, thermal expansion artifacts during treatment, sound velocity changes, and echo shifts caused by tissue contraction, which reduces the backscattered energy. Stability, Robustness and Smoothness of Change Estimation

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