Diuretic ultrasound imaging for assessment of upper urinary tract obstruction

ABSTRACT

This study was done on 60 patients to evaluate the diagnostic reliability of renal ultrasound with a diuretic in the evaluation of upper tract obstruction. The test comprised an initial renal ultrasound examination followed by the intravenous injection of 250 ml physiological saline with 40 mg furosemide. Further ultrasound scans were carried out from 5 to 120 minutes later. The results were compared with those of diuretic intravenous urography and diuretic renography in some cases. It is concluded that dynamic ultrasound with a diuretic is a useful investigation, and it showed a sensitivity of about 94%