Should Renal Ultrasound be Performed in Patient with Microscopic Hematuria and Normal Excretory Urogram?

Abstract
We determine what additional information would be detected by renal ultrasonography that was not identified by a normal excretory urogram (IVP) performed for the evaluation of microscopic hematuria. A retrospective review was done of 101 patients with microscopic hematuria and a normal IVP who underwent renal ultrasonography. Of the 101 patients with microscopic hematuria and a normal IVP, renal ultrasonography was abnormal in 20 percent. All findings were ultimately proved to be of no clinical significance, although 6 of 21 patients required a total of 10 additional studies, including 9 computerized tomography scans and 1 renal arteriogram. These data demonstrate that renal ultrasonography is unnecessary in a patient with microscopic hematuria and a normal IVP.