[1]李已晴,夏翎,赵兴群. 功率M模式经颅多普勒超声测量系统的设计[J].中国医学物理学杂志,2018,35(6):701-706.[doi:DOI:10.3969/j.issn.1005-202X.2018.06.015]
　LI Yiqing,XIA Ling,ZHAO Xingqun. Design of power motion-mode transcranial Doppler ultrasonic measurement system[J].Chinese Journal of Medical Physics,2018,35(6):701-706.[doi:DOI:10.3969/j.issn.1005-202X.2018.06.015]
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 功率M模式经颅多普勒超声测量系统的设计()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
35卷
期数:
2018年第6期
页码:
701-706
栏目:
医学信号处理与医学仪器
出版日期:
2018-06-22

文章信息/Info

Title:
 Design of power motion-mode transcranial Doppler ultrasonic measurement system
文章编号:
1005-202X（2018）06-0701-06
作者:
 李已晴; 夏翎; 赵兴群
 东南大学生物科学与医学工程学院， 江苏 南京 210000
Author(s):
 LI Yiqing;  XIA Ling;  ZHAO Xingqun
 School of Biological Science and Medical Engineering, Southeast University, Nanjing 210000, China
关键词:
 ; 经颅多普勒; 超声测量;  功率M模式多普勒成像技术; 双FIFO; 短时傅里叶变换
Keywords:
Keywords: transcranial Doppler;  ultrasonic measurement;  power motion-mode Doppler imaging technique;  dual FIFO;  short time Fourier transform
分类号:
R318.6
DOI:
DOI:10.3969/j.issn.1005-202X.2018.06.015
文献标志码:
A
摘要:
 经颅多普勒（TCD）是研究颅内大血管中血流动力学的常用技术，但传统TCD中依然存在着对大脑血管定位困难和对微栓子检测不确定等缺点。为了克服这些弊端，本研究设计了一种功率M模式TCD测量系统。该系统通过FPGA设计、USB固件驱动以及PC数据后处理等模块共同实现。数字电路模块以FPGA为核心进行状态机设计，并采用高速AD采样和双FIFO乒乓工作模式来确保良好的实时性；硬件电路部分和PC之间的数据传输依靠高速USB实现；软件模块结合功率M模式多普勒成像技术、短时傅里叶变换和伪彩色图像处理，对超声波束发射方向上整体深度的血流状态进行监测，方便定位血管深度，并为临床医生提供选通深度的声谱图信息。
Abstract:
 Abstract: Transcranial Doppler (TCD) is a common technique used for studying haemodynamics of intracranial vessels. The traditional TCD has some disadvantages, such as difficulties in positioning the blood vessels and detecting the embolus in human’s brain. To overcome these deficiencies, a power motion-mode TCD measurement system is designed by combining different modules, such as field-programmable gate array, USB chips and processed data on personal computer. The digital circuit module centred on field-programmable gate array was applied for designing the system state machine. Meanwhile, high-speed AD simultaneous sampling chip and ping-pong working mode of dual FIFO were used to assure a real-time performance. The data transmission between hardware and personal computer was realized by high-speed USB. The software module combined with power motion-mode imaging technique, short time Fourier transform and pseudo-color image processing to monitor the whole state of blood vessels in the transmitting ditrection of ultrasonic beams, which can easily locate blood vessels and provide the doctors with more information of the ultrasonic spectrum.

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备注/Memo

备注/Memo:
 【收稿日期】2018-03-25
【作者简介】李已晴，硕士研究生，研究方向：医学电子学，E-mail: 1226991788@qq.com
【通信作者】赵兴群，博士，教授，研究方向：医学仪器设计和开发、医学信号分析与处理、超声波检测技术及应用，E-mail: ndt@seu.edu.cn
更新日期/Last Update: 2018-06-22