Noninvasive estimation of cardiac output

Author

Welkowitz, Walter ; Cui, Qing ; Qi, Yun ; Kostis, John B.

Author_Institution

Dept. of Biomed. Eng., Rutgers Univ., Piscataway, NJ, USA

Volume

38

Issue

11

fYear

1991

Firstpage

1100

Lastpage

1105

Abstract

A noninvasive method of measuring cardiac output is described. The method uses adaptive aorta models in conjunction with femoral and carotid pulse contour waveform measurements to calculate aortic flow. Results are presented from measurements on dogs using internal pressure recordings made with fluid-filled catheters and compared with electromagnetic flow measurements taken in the ascending aorta. Preliminary results using external pulse measurements on patients are also presented and compared with thermal dilution measurements.

Keywords

biomedical measurement; cardiology; haemodynamics; adaptive aorta models; ascending aorta; cardiac output measurement; carotid pulse contour waveform measurements; dogs; electromagnetic flow measurements; external pulse measurements; femoral pulse; fluid-filled catheters; internal pressure recordings; medical measurement technique; noninvasive method; patients; thermal dilution measurements; Biomedical measurements; Cardiology; Elasticity; Equations; Fluid flow measurement; Immune system; Instruments; Pressure measurement; Pulse measurements; Ultrasonic variables measurement; Animals; Aorta; Cardiac Output; Dogs; Heart Function Tests; Humans; Pressure; Rheology; Signal Processing, Computer-Assisted;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.99073

Filename

99073