微循环血液流速测量的研究  

Measurement of Blood Microcirculation Velocity by Image Processing

作　　者：沈兵[1] 刁越[1] 曾衍钧[1] 胡金麟[2] 

机构地区：[1]北京工业大学生命科学与生物医学工程学院,北京100022 [2]解放军总医院微循环实验室,北京100853

出　　处：《中国生物医学工程学报》2005年第6期717-722,共6页Chinese Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目(10072006)

摘　　要：本研究根据微循环的特征,把微循环分为多种类型,不同类型用不同的测量方法。引入了傅立叶变换(FFT)的数字信号处理方法,对微循环血液平均流速的测量方法进行了系统的分析。对传统的方法进行了改进,引入新的测量方法进行了尝试。结果显示,分类后测量方法变得简单,实时性和准确性都有改进,从FFT变换的试验中得到很多有益的结果。Microcirculations are classified by capillary diameter and speed of blood flow. Each kind of microcirculation has its corresponding method to measure velocity. Fast Fourier Transform （FFT）, a kind of signal processing methods, was introduced in this paper. The methods for blood average velocity measurement were analyzed systematically. The conventional methods was improved by introducing new method（FFT） into the measurment. Results show that the measurement become simple after being classified, the real time performance and veracity were improved. Many good results have been obtained from FFT.

关 键 词：数字图象处理 数字信号处理 微循环 血液流速 速度测量 

分 类 号：R318[医药卫生—生物医学工程]