一种经直肠三维超声成像系统  

A Three-dimensional Transrectal Ultrasound Imaging System

作　　者：陈益民[1] 齐建[1] 丁明跃[1] 张旭明[1] 

机构地区：[1]华中科技大学生命科学与技术学院,武汉430074

出　　处：《生物医学工程学杂志》2014年第4期917-922,共6页Journal of Biomedical Engineering

基　　金：湖北省自然科学基金资助项目(2009CDA056);国家重点基础研究发展计划(973计划)项目资助(2011CB933103);国际合作与交流项目资助(30911120497)

摘　　要：本文设计并完成了一种经直肠三维超声成像系统。该系统主要用于前列腺的三维超声成像,通过采集经直肠二维超声图像序列来重建三维图像,并可用于前列腺的穿刺导引。系统由硬件设备和软件程序两部分组成,硬件设备包括用于固定直肠探头并进行旋转扫描的机械装置、步进电机、步进电机控制电路、二维B超成像系统,以及计算机(PC)工作站;软件程序包括控制电路的单片机程序和PC工作站的软件程序。通过水和琼脂对该系统进行了验证,试验结果表明通过该系统能够采集到目标体的三维超声图像,且精度较高。A three-dimensional （3D） transrectal ultrasound （TRUS） imaging system is presented in this paper. The 3D imaging system is used for diagnosing diseases of prostate. The 3D image is reconstructed by a series of two-dimensional image data which is obtained through rectum. It can be a guide to prostate needle biopsies. The system is built by two parts： hardware and software. In the hardware, the mechanical device, stepper motor, control circuit, B Mode TRUS and personal computer （PC） workshop are presented. The software includes the firmware of micro control unit and software of the PC workshop. In order to evaluate the performance of the 3D imaging system, we did experiments with water and agar phantoms, and the results demonstrated the system＇s ability of 3D imaging with high-precision.

关 键 词：三维超声成像 经直肠超声成像 

分 类 号：R445.1[医药卫生—影像医学与核医学]