Different Methods of Arterial Compliance Estimation Tested with Reservoir-Wave Model of Arterial System

摘要

Arterial compliance(C)describes the ability of the arterial system to increase volume(V)with increasing pressure(P).Compliance is a marker of preclinical vascular diseases and cardiovascular risk factor.There are many different methods estimating arterial compliance.The aim of this study was to find out whether three of them: diastolic decay time method,pulse pressure method and area method are able to recover assumed value of C,when applied to reservoir-wave model of arterial system.This model assumes that arterial pressure is sum of two components: pressure caused by blood flow and pressure resulting from change in arterial blood volume.We calculate aortic blood pressure using reservoir-wave model for given blood flow and different values of model parameters Z-arterial impedance(0.1