摘要
目的:提高血糖无创检测的精度,以利于诊断和治疗血管疾病。方法:以DSP为控制核心,采用收发一体的多普勒探头,研制一种血流测量系统。该系统基于多普勒效应,采集超声回波信号,通过多普勒频差计算血流速度。结果:通过采集与分析回波信号,该系统可以对预定目标深度的血流进行检测。结论:该系统极大简化了电路规模,提高了检测精度,对糖尿病的临床诊断和其他便携超声仪器的研制都具有重要的实用价值。
Objective To enhance the glucose detection precision for the diagnosis and treatment of vascular diseases.Methods With DSP as the control unit,a Doppler probe with the transceiver was used to develop a blood flow measurement system.Based on Doppler effect,the system acquired ultrasonic echo signals,and then determined the blood flow rate through Doppler frequency tolerance.Results By acquiring and analyzing echo signals,the system could detect the blood flow with a desired depth.Conclusion The blood flow measurement system,with simplified circuit and enhanced precision,is valuable for the clinical diagnosis of the diabetes and the development of other portable ultrasonic devices.
出处
《医疗卫生装备》
CAS
2013年第3期1-3,10,共4页
Chinese Medical Equipment Journal
基金
国家高技术研究发展计划(863计划)重点资助项目(2011AA040406)
国家自然科学基金资助项目(61271119)
广西自然科学基金资助项目(2011jjA40078)
关键词
无创检测
DSP
血流测量
多普勒效应
回波信号
noninvasive detection
DSP
blood flow measurement
Doppler effect
echo signal
