CONTINUOUS MEASUREMENT OF CARDIAC-OUTPUT WITH THE USE OF STOCHASTIC-SYSTEM IDENTIFICATION TECHNIQUES

被引：107

作者：

YELDERMAN, M

机构：

[1] InterFlo Medical, Piano, 75074, TX

来源：

JOURNAL OF CLINICAL MONITORING | 1990年 / 6卷 / 04期

关键词：

Measurement techniques: cardiac output;

D O I：

10.1007/BF02842492

中图分类号：

R614 [麻醉学];

学科分类号：

100217 ;

摘要：

The limitations of developing a technique to measure cardiac output continuously are given. Logical explanations are provided for the economic, technical, and physiologic benefits of a stochastic system identification technique for measuring cardiac output. Heat is supplied by a cathetermounted filament driven according to a pseudorandom binarsequence. Volumetric fluid flow is derived by a crosscorrelation algorithm written in the C language. In vitro validation is performed with water in a flow bench. The computed flow (y) compared with the in-line-measured flow (x) yields the linear regression y = 1.024x-0.157 (r = 0.99). The average coefficient of variation is less than 2% over a volumetric fluid flow range of 2 to 10 L/min. © 1990 Little, Brown and Company.

引用

页码：322 / 332

页数：11

共 38 条

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