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1. Serial radionuclide determinations of the electron fraction with 99mTc-labeled red blood cells.

Author

Alderson PO, Bernier DR, Ludbrook PA, Harwig JF, Roberts R, and Sobel BE

Subjects
Cardiac Output, Coronary Disease physiopathology, Heart Ventricles, Humans, Erythrocytes, Heart Function Tests methods, Radionuclide Imaging methods, Technetium
Abstract

The reproducibility of area/length ejection fraction determinations was evaluated in 21 subjects using 99mTc-labeled red blood cells (99mTc-RBCs). The ejection fraction was determined within 30 minutes and 3-5 hours after a single injection of 99mTc-RBCs. The mean absolute difference between the initial and subsequent ejection fractions was 7% (maximum, 15%) (r = 0.90). 99mTc-RBCs offer a reproducible method of determining the ejection fraction which is suitable for serial noninvasive evaluations of left ventricular function.

Published
1976
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