title: A comparative study of cardiac output measurement by dye dilution and pulsed Doppler ultrasound.
abstract: Dye dilution was compared with pulsed doppler for the measurement of cardiac output in eighteen children being ventilated after cardiac surgery. The mean difference between the two techniques was -0.04/min (dye minus doppler) with 95% confidence limits of 0.25 l/min and -0.33 l/min over a cardiac output range 0.27-6.12 l/min; this difference is not significant. Calculation of the product-moment correlation coefficient showed a close relationship between the dye dilution and doppler methods with r = 0.97. Pulsed doppler is a new noninvasive technique that can be used instead of dye dilution for the measurement of cardiac output in co-operative or anaesthetised children.
authors.affiliation: Intensive Care Unit, Royal Children's Hospital, Parkville, Victoria.
authors.forename: J
authors.initials: J
authors.lastname: Tibbals
authors.forename: A
authors.initials: A
authors.lastname: Osborne
authors.forename: M
authors.initials: M
authors.lastname: Hockmann
mesh_terms: D001011:Aorta; D001783:Blood Flow Velocity; D002302:Cardiac Output; D002648:Child; D002675:Child, Preschool; D004395:Dye Dilution Technique; D015150:Echocardiography, Doppler / Q000379:methods; D006801:Humans; D007223:Infant