Geometric determination of left ventricular volume from gated blood-pool studies using a slant-hole collimator

R. F. Uren, H. N. Newman, B. F. Hutton, J. Cormack, L. Bernstein, L. Allen, I. Dyer

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

A geometric method of measuring absolute left ventricular volumes from gated blood-pool studies obtained in a single-plane modified left anterior oblique view was evaluated prospectively in 30 patients who also underwent single-plane contrast ventriculography. The gated studies used a 30° straight-bore slant-hole collimator with the holes slanted caudally. Left ventricular end-diastolic volume was calculated using the area-length method, with semiautomatic definition of the left ventricular region of interest and the maximum length of the left ventricle. Ejection fraction was determined from the left ventricular time/activity curve. The left ventricular end-systolic volume was derived using the end-diastolic volume and ejection fraction. Correlation coefficients between the two methods were 0.93 for end-diastolic volume, 0.95 for end-systolic volume, and 0.91 for ejection fraction. This method provided accurate and highly reproducible measurements of actual left ventricular volumes and was easily applicable in routine clinical studies.

Original languageEnglish
Pages (from-to)541-545
Number of pages5
JournalRadiology
Volume147
Issue number2
DOIs
Publication statusPublished - 1983
Externally publishedYes

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