Cardiac Output Measurement System based on Pulse Dye Densitometry
ZHAO Yinyin
WANG Gang
ZHANG Dake
CAI Jing
Abstract：Cardiac output (CO) and other cardiovascular hemodynamic parameters were taken as diagnostic basis of heart function condition and cardiovascular disease in clinic .But the traditional detection methods have disadvantages such as operation complex and surgical trauma , as well as possibility of complication for patients .To solve the problem , a cardiac output measurement system based on pulse dye densitometry ( PDD) was researched .With lambert beer 's law and dye dilution theory as the foundation , the noninvasive and real-time measurement of arterial indocyanine green ( ICG) dye concentration spectrum was realized , by choosing appropriate du-al wavelength detection light source (805nm and 940nm), and CO could be calculated from the concentration time curve of ICG .Com-pared with the "gold standard"method of thermodilution , the average relative error was 4.79% and the correlation coefficient was 0.99.The result indicates that the CO measurement system implements the noninvasive and accurate measurement and provides a new choice for clinical detection of CO .
Keywords：Cardiac outputPulse dye densitometryIndocyanine greenDye dilution theoryThermodilution
Publication Date：2017-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：4( 287-290 )