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Differential renal function in unilateral renal injury: possible effects of radiopharmaceutical choice. [Rats]

Journal Article · · J. Nucl. Med.; (United States)
OSTI ID:5970166
An abnormal filtration fraction or a significant divergence between a kidney's ability to extract Tc-99m dimercaptosuccinic acid (DMSA) and other function parameters, such as the glomerular filtration rate (GFR) or the effective renal plasma flow (ERPF, could lead to different estimates of relative or absolute renal function, depending on the radiopharmaceutical administered. To evaluate this possible divergence, the authors measured the relative GFR (I-125 iothalamate), ERPF (I-131 hippurate), and Tc-99m DMSA accumulation in adult male Sprague-Dawley rats with unilateral ureteral obstruction or unilateral ischemia at various times after renal injury. The relative ERPF of the obstructed kidney was significantly greater than the relative GFR at all time periods studied; significant but less dramatic differences were noted comparing DMSA with GFR in obstruction and DMSA and ERPF with GRF in ischemia.
Research Organization:
Univ. of Utah School of Medicine, Salt City
OSTI ID:
5970166
Journal Information:
J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 26:1; ISSN JNMEA
Country of Publication:
United States
Language:
English