Quantitative renal scintigraphic determination of effective renal plasma flow in dogs with normal and abnormal renal function, using 99mTc-mercaptoacetyltriglycine.

TitleQuantitative renal scintigraphic determination of effective renal plasma flow in dogs with normal and abnormal renal function, using 99mTc-mercaptoacetyltriglycine.
Publication TypeJournal Article
Year of Publication1994
AuthorsItkin RJ, Krawiec DR, Twardock AR, Gelberg HB
JournalAmerican journal of veterinary research
Volume55
Issue12
Pagination1660-5
Date Published1994 Dec
ISSN0002-9645
KeywordsAnimals, Dog Diseases, Dogs, Female, Male, p-Aminohippuric Acid, Reference Values, Renal Insufficiency, Renal Plasma Flow, Effective, Technetium Tc 99m Mertiatide
Abstract

Effective renal plasma flow (ERPF) was evaluated, using the measurement of p-aminohippurate clearance (CLPAH) and quantitative renal scintigraphy (QRS) with 99mTc-mercaptoacetyltriglycine (99mTc-MAG3). The CLPAH and QRS determinations were made in 6 dogs: 2 determinations for each dog before, and 1 determination after induction of renal failure by administration of amphotericin B. Least-squares regression analysis was used to derive an equation to estimate ERPF from QRS data. The results indicated that QRS, using 99mTc-MAG3, correlated reasonably well (r = 0.82, P < 0.001) with ERPF determined from the CLPAH value. The right kidney contributed 53.3% of global ERPF (P = 0.002). Hepatobiliary excretion of 99mTc-MAG3 was variable within each dog. There was not a consistent pattern with respect to time or renal function. All dogs had nausea or emesis, or both, after IV administration of 99mTc-MAG3. The QRS method with 99mTc-MAG3 provides an adequate means to estimate ERPF in healthy dogs and dogs with renal failure.

Alternate JournalAm. J. Vet. Res.