[Postoperative consideration of diagnostic value of ultrasonography and excretory urography on seven patients with renal calculi].

Seven patients with renal calculi were evaluated by ultrasonography and intravenous pyelography (IVP). After surgical treatment, the diagnostic value of these examinations was considered. Correct diagnosis of renal calculus size and number had been established in 4 of the 7 patients by ultrasonography, and 5 of the 7 patients by IVP. In some cases, ultrasonography gave a more accurate diagnosis of renal stone than drip intravenous pyelography.