A novel method for evaluating tissue inhomogeneity in elastography

作     者：BAI Peirui, WAN Mingxi, WANG Supin, ZHANG Dachun and DANG Jun (Department of Biomedical Engineering, Xi’an Jiaotong University, Key Laboratory of Biomedical Information Engineering of Ministry of Education, Xi’an 710049, China) 

作者机构：[a]Department of Biomedical Engineering Xi' an Jiaotong University China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2006年第16卷第5期

页      面：474-479页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 08[工学] 0836[工学-生物工程] 

基　　金：Supported by National Natural Science Foundation of China (Grant Nos. 30370403 and 30270404) 

主　　题：ultrasound elastography tissue compression tissue inhomogeneity time-frequency analysis Renyi information. 

摘      要：Based on the detection of differential Renyi information (DRI) of segmented pre- and post-compression radio-frequency (RF) echo signals, a novel method for evaluating tissue inhornogeneity in elastography prior to the cross-correlation operation is proposed. In vitro experiments were carried out to corroborate the performance of the DRI method. Experimental results illustrate that valuable insights into local tissue inhomogeneity can be obtained through analyzing the DRI curves of the echo segments, which can provide information to aid the study of strain estimation algorithm in elastography.