A Two-dimensional(2 D)Ultrasonic Elastography Method based on Vector Field Estimation
ZHOU Jialu
WANG Tao
YANG Jun
Abstract：In the traditional ultrasonic imaging method,one dimensional elastic ultrasound imaging is the main method,and the lateral displacement of the measured body is neglected.In this paper,a quasi-static 2D ultrasound imaging method based on vector field estimation was proposed.First,the characteristic peak fingerprint informationofenvelope line was gotten,track the information u-sing optical flow tracking method was trached and estimate vector field was predicted;then,the phase correlation algorithm is used to accurately calculate the position of the vector field and predict vector field;filtering to obtain the strain field of quasi static 2D ultra-sound imaging.The validity of the method by using finite element analysis method and compared with the other imaging methods in the Poisson range of 0.4~0.48.The experimental results show that this method is a higher resolution of ultrasound elastography method with better robustness.
Keywords：Vector field estimationUltrasonic imagingOptical flow trackingPhase correlationFinite element analysis
Publication Date：2016-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：6( 224-228,240 )