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Determination of left-ventricular volume from first-pass kinetics of labeled red cells

Journal Article · · J. Nucl. Med.; (United States)
OSTI ID:5997589
A mathematical model is presented for the dynamics of a bolus of /sup 99m/Tc labeled red blood cells through the left ventricle. It is used to correct for attenuation the count rate observed over the left ventricle during a conventional gated blood-pool study. The left-ventricular volumes are calculated from the corrected count rates and expressed as a percentage of total blood volume, or in absolute terms if a blood sample is obtained. The procedure is applied to a number of patients with nonvalvular cardiac disease. Cardiac volumes determined by the method are found to correlate well (r . 0.98) with those determined by contrast left ventriculography. The method is simple, requires no special equipment, and can be applied with existing computer software.
Research Organization:
University of South Alabama Medical Center, Mobile
OSTI ID:
5997589
Journal Information:
J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 24:2; ISSN JNMEA
Country of Publication:
United States
Language:
English