Determination of cardiac output by magnetic resonance imaging

J. Mogelvang*, F. Stahlberg, L. Sondergard, C. Thomsen, K. Lindvig, O. Henriksen

*Corresponding author af dette arbejde

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    Abstract

    Quantitative flow measurements to determine forward flow in the ascending aorta were performed in 7 normal volunteers and in 6 patients by magnetic resonance imaging using an interleaved gradient echo pulse sequence. Cardiac output was determined simultaneously by a classical indicator dilution technique in the normals. In the patients, left- and right-ventricular stroke volumes were determined immediately before the flow measurement by a traditional spin echo multislice technique. There was a close correlation between aortic forward flow- and indicator dilution-derived cardiac output (r = 0.96, p < 0.001). Moreover, there was good agreement between aortic forward flow and left-ventricular stroke volume (r = 0.95, p < 0.01) and between aortic forward flow and right-ventricular stroke volume (r = 0.98, p < 0.001). The results indicate that the flow sequence is a reliable method for quantitative in vivo flow measurements.

    OriginalsprogEngelsk
    Sider (fra-til)201-204
    Antal sider4
    TidsskriftAmerican Journal of Noninvasive Cardiology
    Vol/bind6
    Udgave nummer3
    DOI
    StatusUdgivet - 1 jan. 1992

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