Development of microwave-induced thermo-acoustic tomography prototype system  

作　　者：CHEN GuoPing ZHAO ZhiQin GONG Wei NIE ZaiPing LIU QingHuo 

机构地区：[1]School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China [2]Department of Electrical and Computer Engineering, Duke University, Durham, NC 27708, USA

出　　处：《Chinese Science Bulletin》2009年第23期4446-4450,共5页

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 60771042);National High Technology Research and Development Program (Grant No. 2007AA12Z159);111 Project (Grant No. B07046);Sichuan Excellent Youth Foundation (Grant No. 08ZQ026-039);Program for New Century Excellent Talents in University of China and Program for Changjiang Scholars

摘　　要：Due to its advantages in both contrast and resolution compared with conventional microwave or ultrasound imaging system, microwave-induced thermo-acoustic tomography (MITAT) has received more and more concerns in biologic tissue image field. In this paper, an integrated prototype of MITAT system is presented. Using this system, some basic experiments for biologic tissue objects with high water-content imbedded in fatty material have been done. In the MITAT experiments, the signals generated by two porcine muscle tissue strips with millimeter order scale in cross-section were collected. Images with both good contrast and resolution were obtained. In order to demonstrate the advantages of MITAT, some ultrasonic experiments were studied using a commercial ultrasonic linear array system. The comparisons of the results of both systems show the good performance of the MITAT prototype system for the detection of high water content targets, which is generally the same as the tumor in biologic tissue.Due to its advantages in both contrast and resolution compared with conventional microwave or ultrasound imaging system, microwave-induced thermo-acoustic tomography （MITAT） has received more and more concerns in biologic tissue image field. In this paper, an integrated prototype of MITAT system is presented. Using this system, some basic experiments for biologic tissue objects with high water-content imbedded in fatty material have been done. In the MITAT experiments, the signals generated by two porcine muscle tissue strips with millimeter order scale in cross-section were collected. Images with both good contrast and resolution were obtained. In order to demonstrate the advantages of MITAT, some ultrasonic experiments were studied using a commercial ultrasonic linear array system. The comparisons of the results of both systems show the good performance of the MITAT prototype system for the detection of high water content targets, which is generally the same as the tumor in biologic tissue.

关 键 词：原型系统 微波诱导 声成像 导热 开发 生物组织 实验对象 超声波 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术] TQ138.11[自动化与计算机技术—计算机科学与技术]