Normalised radionuclide measures of left ventricular diastolic function

Kenneth J. Lee, Andrew E. Southee, George J. Bautovich*, Ben Freedman, Andrew F. McLaughlin, Monica A. Rossleigh, Brian F. Hutton, John G. Morris

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)

    Abstract

    Abnormal left ventricular diastolic function is being increasingly recognised in patients with clinical heart failure and normal systolic function. A simple routine radionuclide measure of diastolic function would therefore be useful. To establish this, the relationship of peak diastolic filling rate (normalized for either end diastolic volume, stroke volume, or peak systolic emptying rate), and heart rate, age, and left ventricular ejection fraction was studied in 64 subjects with normal cardiovascular systems using routine gated heart pool studies. The peak filling rate, when normalized to end diastolic volume, correlated significantly with heart rate, age and left ventricular ejection fraction, whereas normalization to stroke volume correlated significantly to heart rate and age but not to left ventricular ejection fraction. Peak filling rate normalized for peak systolic emptying rate correlated with age only. Multiple regression equations were determined for each of the normalized peak filling rates in order to establish normal ranges for each parameter. When using peak filling rate normalized for end diastolic volume or stroke volume, appropriate allowance must be made for heart rate, age and ejection fraction. Peak filling rate normalized to peak ejection rate is a heart rate independent parameter which allows the performance of the patient's ventricle in diastole to be compared with its systolic function. It may be used in patients with normal systolic function to serially follow diastolic function or if age corrected, to screen for diastolic dysfunction.

    Original languageEnglish
    Pages (from-to)123-127
    Number of pages5
    JournalEuropean journal of nuclear medicine
    Volume15
    Issue number3
    DOIs
    Publication statusPublished - Mar 1989

    Keywords

    • Diastole
    • Peak filling rate
    • Radionuclide gated heart pool scan

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