Comparison of methods of fractional area change for detection of regional left ventricular dysfunction: Reference for use in stress echocardiography

Steen Carstensen*, Ulla Hoest, Lars Kjoeller-Hansen, Kari Saunamäki, Dan Atar, Henning Kelbæk

*Corresponding author af dette arbejde

    Publikation: Bidrag til tidsskriftArtikelForskningpeer review

    Abstract

    Three methods for assessment of fractional area change (FAC) and conventional versus cross-sectional segmentation were compared under conditions known to occur frequently during stress echocardiography. Quantitative analysis of 80 echocardiograms obtained from healthy subjects, patients with left ventricular (LV) dysfunction and after coronary artery bypass grafting included segmental and cross-sectional FACs by the centroid method with fixed and floating reference and a method with floating external reference. All segmental and cross-sectional FACs were equally sensitive to LV dysfunction, and segmental FACs failed to accurately predict the location of coronary lesions. The centroid method with floating reference and cross-sectional FACs were the least affected by surgery induced intrathoracic heart motion. In moderate to severe LV dysfunction FAC by the centroid method with floating reference and cross sections were rarely within normal limits. Cross-sectional FACs may prove to be useful in stress echocardiography. For viability studies segmental FAC by fixed reference appears to be the method of choice.

    OriginalsprogEngelsk
    Sider (fra-til)257-266
    Antal sider10
    TidsskriftInternational Journal of Cardiac Imaging
    Vol/bind16
    Udgave nummer4
    DOI
    StatusUdgivet - 1 dec. 2000

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    Udforsk hvilke forskningsemner 'Comparison of methods of fractional area change for detection of regional left ventricular dysfunction: Reference for use in stress echocardiography' indeholder.

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