ESTIMATION OF REGURGITANT VOLUME AND ORIFICE IN AORTIC REGURGITATION COMBINING CW DOPPLER AND PARAMETER-ESTIMATION IN A WINDKESSEL-LIKE MODEL

被引：5

作者：

ANGELSEN, BAJ

SLORDAHL, SA

SOLBAKKEN, JE

SAMSTAD, SO

LINKER, DT

TORP, H

PIENE, H

机构：

[1] Department of Biomedical Engineering, University of Trondheim

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1990年 / 37卷 / 10期

关键词：

D O I：

10.1109/10.102805

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A method for noninvasive estimation of regurgitant orifice and volume in aortic regurgitation is proposed and tested in anesthetized open chested pigs. The method can be used with noninvasive measurement of regurgitant jet velocity with continuous wave ultrasound Doppler measurements together with cuff measurements of systolic and diastolic systemic pressure in the arm. These measurements are then used for parameter estimation in a Windkessel-like model which include the regurgitant orifice as a parameter. The aortic volume compliance and the peripheral resistance are also included as parameters arid estimated in the same process. For the test of the method, invasive measurements in the open chest pigs are used. Electromagnetic flow measurements in the ascending aorta and pulmonary artery are used for control, and a correlation between regurgitant volume obtained from parameter estimation and electromagnetic flow measurements of 0.95 over a range from 2.1 to 17.8 mL is obtained. © 1990 IEEE

引用

页码：930 / 936

页数：7

共 10 条

[1] ARTERIAL PRESSURE PULSE CONTOUR ANALYSIS VIA A MATHEMATICAL MODEL FOR CLINICAL QUANTIFICATION OF HUMAN VASCULAR PROPERTIES [J].