[Ultrasonic echography in the diagnosis of urolithiasis].

The paper is concerned with comparison of the results of ultrasound and x-ray investigation in 110 patients with urolithiasis. A possibility was established to diagnose roentgenonegative concrements in the kidneys and pelvicalyceal system with the help of ultrasound echography. The results of x-ray investigation were more reliable for the localization of uretero- and cystoliths. Ultrasound echography in such patients permitted the detection of complications (hydrocalycosis and hydronephrosis) as well as the assessment of the time course of complications in the postoperative period.