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Clinical comparison of high-resolution with high-sensitivity collimators in low-count cardiac gated blood pool
C C Kuni1, T K Johnson, R J Boudreau
1Department of Radiology, University of Minnesota Hospital and Clinics, Minneapolis 55455.
American Journal of Physiologic Imaging
|January 1, 1988
Abstract:
We compared high-sensitivity (HS) and high-resolution (HR) collimators for 2.5-minute low-count acquisitions in 13 patients undergoing cardiac gated blood pool studies. High-count acquisitions served as standards. Ejection fractions calculated from low-count acquisitions were plotted against high-count acquisitions for each collimator; the variance of the HS plot was lower, and HS images were superior.