MICROPROCESSOR-BASED SIGNAL PROCESSING SYSTEM FOR MEASUREMENT OF VASCULAR AND URETHRAL PARAMETERS.

被引：0

作者：

Pritchard, Thomas B. ^{[1
]}

Albright, Robert J. ^{[1
]}

Pritchard, Bruce A. ^{[1
]}

机构：

[1] Hewlett-Packard Co, Vancouver, WA,, USA, Hewlett-Packard Co, Vancouver, WA, USA

来源：

IEEE Transactions on Biomedical Engineering | 1986年 / BME-33卷 / 12期

关键词：

COMPUTER SYSTEMS; DIGITAL - Real Time Operation - SIGNAL PROCESSING - Medical Applications - VELOCIMETERS - Ultrasonic Doppler;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A relatively simple, flexible, and economical digital system is reported for processing biological signals which contain frequencies in the audio range. The microprocessor-based Doppler system was successfully tested on scattered ultrasonic signals from blood and urine to provide diagnostic information in real time. Measurements were obtained for average velocity, standard deviation of velocity (indicative of laminar and turbulent flow), relative flow rate, and relative cross-sectional area as functions of time. Comparison of these measures at various locations along a vessel and at various times in the life of a patient is discussed.

引用

页码：1197 / 1203