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Journal of Biological Sciences
Year: 2019  |  Volume: 19  |  Issue: 2  |  Page No.: 181 - 191

Real Time Brightness Mode Ultrasound in Determining the Causes and Complications of Obstructive Uropathy

Mustafa Z. Mahmoud    

Abstract: Background and Objective: Obstructive uropathy (OU) refers to the structural or functional changes in the urinary tract that impede normal urine flow. This study was designed with an aim to detect the sensitivity, specificity and accuracy of using real-time brightness mode (B-mode) ultrasound (US) in determining the causes and complication of OU. Materials and Methods: A total of 100 patients with symptoms of OU were recruited for a period of 12 months between August, 2017 and August, 2018 in this prospective study. The renal and pelvic US examination was conducted using Mindray's DC-60 machine, equipped with a lower frequency (3.5 MHz) curvilinear probe that allowing a deep penetration and a wide depth of field, which was excellent for viewing intra-abdominal and pelvic structures. Results: Renal stones 25(40.3%), prostatic masses 9(14.5%), urinary tract infection (UTI) 2(3.2%) and urinary bladder (UB) diverticula1(1.6%) were the major causes of OU in male patients. While, in female patients, the most common causes of OU were renal stones 11(28.9%), ovarian masses 6(15.8%), UTI 1(2.6%) and ureterocele 1(2.6%). Hydronephrotic changes with grade II 16(25.8%), grade III 9(14.5%), grade I 2(3.2%) and grade IV 1(1.6%) were frequent in male patients. While, in female patients, the commonest hydronephrotic changes were with grade II 8(21.1%) and 7(18.4%), grade I 1(2.6%) and grade III 1(2.6%). Conclusion: Renal and pelvic US showed a sensitivity of 97.85%, specificity of 75% and accuracy of 95.24% in determining the causes and complication of OU.

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