دقت سونوگرافي در اندازه گيري مقدار ادرار باقيمانده در مثانه در بيماران دچار بزرگي خوش خيم پروستات

Accuracy of Ultrasound Study for Measurement of Residual Urine in Patients with Benign Prostatic Hyperplasia

Background and Objectives: Measurement of postvoid residual (PVR) urine volume in patients with benign prostatic hyperplasia (BPH) is a practical method for diagnosis, treatment and follow-up of these patients. This study was conducted to evaluate the accuracy of Ultrasound study method in compare with standard bladder catheterization for measurement of PVR volume.Materials and Methods: In this prospective study that was done between January to November 2007 consecutive patients who were admitted in the Urology unite because of BPH evaluated were enrolled. All patients were examined with full bladder, and after voiding PVR volume was measured by ultrasound in supine position. Immediately after ultrasound examination the bladder was catheterized and the PVR determined accurately.Results: In this study total number of 60 patients were studied (67.10± 8.33 years). In dose with PVR volumes lower than 50 ml the mean difference between ultrasound measurement and catheterization measurement was 7.89±0.86ml, in those with PVR volumes between 51-100 ml the mean deference was 14.46±1.87, and with PVR volumes higher than 100ml the mean difference was 32.73±2.99 ml.Conclusion: Conventional transabdominal ultrasound is a roughly reliable method for assessing the residual urine volume in patients with BPH.