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Radiology, Vol 132, 155-159, Copyright © 1979 by Radiological Society of North America

ARTICLES

Reproducibility of ejection fraction and ventricular volume by gated radionuclide angiography after myocardial infarction

R Slutsky, J Karliner, A Battler, M Pfisterer, S Swanson and W Ashburn

To validate the repeated use of radionuclide equilibrium angiography for determining left ventricular (LV) ejection fraction (EF) and end- diastolic and end-systolic volumes (EDV and ESV), 25 patients were studied on an hourly basis an average of 9.1 days after acute myocardial infarction. Data were processed with a semi-automatic computer program which develops an averaged-volume curve from an assigned LV region-of-interest. LV EDV and ESV were derived from a previously described method which correlates well with contrast angiography (r = 0.977, y = 0.0255x - 0.121). Comparison between initial and subsequent equilibrium EF and between initial and subsequent volumes showed excellent correlation. Excluding three anginal episodes, the EF variation between studies averaged 0.03 +/- 0.02.


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Y. Cottin, C. Touzery, F. Guy, A. Lalande, O. Ressencourt, S. Roy, P. M. Walker, P. Louis, F. Brunotte, and J. E. Wolf
MR Imaging of the Heart in Patients after Myocardial Infarction: Effect of Increasing Intersection Gap on Measurements of Left Ventricular Volume, Ejection Fraction, and Wall Thickness
Radiology, November 1, 1999; 213(2): 513 - 520.
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