Measurement of aortic and mitral regurgitation by gated cardiac blood pool scans.
Author(s) -
P. Rigo,
Philip O. Alderson,
R M Robertson,
Lewis C. Becker,
H. N. Wagner
Publication year - 1979
Publication title -
circulation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.795
H-Index - 607
eISSN - 1524-4539
pISSN - 0009-7322
DOI - 10.1161/01.cir.60.2.306
Subject(s) - medicine , cardiology , mitral regurgitation , regurgitation (circulation) , stroke volume , valvular regurgitation , systole , diastole , stroke (engine) , blood pressure , heart rate , mechanical engineering , engineering
A simple, noninvasive radionuclide technique which measures the severity of valvular regurgitation has been developed. The technique compares right and left ventricular stroke volume indices (change in counts between diastole and systole over the left and right ventricles) from 45 degrees LAO gated cardiac blood pool scans. In 14 control subjects, the left-to-right ventricular stroke index ratio was near unity (1.15 +/- 0.15 [SD]). In 26 patients with mitral and/or aortic regurgitation it was larger (range 1.36--5.30, mean 2.44). Comparison between the stroke index ratio and qualitative angiographic estimates of regurgitation revealed good agreement (F = 45.5, p less than 0.001). Gated cardiac blood pool scans permit noninvasive assessment of the severity of valvular regurgitation.
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