^99mTc-DTPA renal dynamic imaging for renal function of upper urinary calculi

Objective: To investigate the clinical significance of ^99mTc-DTPA renal dynamic imaging in evaluating renal function in the patients of upper urinary calculi.Methods: The results of ^99mTc-DTPA renal dynamic imaging and intravenous pyelography(IVP) in 227 patients of upper urinary stone diseases were analyzed retrospectively.Results: Out of 261 kidneys,the functional ones detected by renal dynamic imaging were much more than those detected by IVP(P<0.01).One hundred and twenty-four kidneys were not visualized by IVP,74.2% of which(92 kidneys) were indicated uptake of radionuclide by renal dynamic imaging with the average 24.3 ml/min glomerular filtration rate value.Conclusions: ^99mTc-DTPA renal dynamic imaging is an ideal method for evaluation of renal function especially in IVP detection failed patients.