Juan de Dios Berná-Mestre1, Thierry Balmaceda2, Diego Martínez2, Jose F Escudero3, Gloria Martínez3, José A García3, Manuel Canteras4, Juan D Berná-Serna2. 1. Department of Radiology, Virgen de la Arrixaca University Hospital, Ctra. Madrid-Cartagena, s/n, 30120, El Palmar, Murcia, Spain. mesjubermu@hotmail.com. 2. Department of Radiology, Virgen de la Arrixaca University Hospital, Ctra. Madrid-Cartagena, s/n, 30120, El Palmar, Murcia, Spain. 3. Department of Urology, Virgen de la Arrixaca University Hospital, Ctra. Madrid-Cartagena, s/n, 30120, El Palmar, Murcia, Spain. 4. Department of Statistics, University of Murcia, Faculty of Medicine, Campus de Espinardo, Murcia, Spain.
Abstract
PURPOSE: To describe the clamp method for performing retrograde sonourethrography (RSUG) and contrast-enhanced voiding sonourethrography (CE-VSUG) via the transperineal approach in male adults. MATERIALS AND METHODS: Prospective study of 113 males (14-86 years) with urethral strictures confirmed by urethrography who received sonourethrography via the clamp method between 2011 and 2015. The characteristic parameters of the quantitative variables were calculated and a comparative analysis of the qualitative variables was conducted using the McNemar test. RESULTS: RSUG was performed successfully in all the cases (n = 113) and detected 49 cases with anterior urethral strictures; the strictures in the proximal bulbar cone in five of them (10.2%) were not visualised on retrograde urethrography (RUG) (p < 0.05). CE-VSUG was performed successfully in 97 cases and observed posterior urethral strictures in 82; the bladder neck strictures in 6 of them (7.3%) were not observed on voiding cystourethrography (VCUG) (p < 0.05). Retrograde bladder filling was achieved in approximately 6 min. CONCLUSION: The clamp method enables RSUG and CE-VSUG to be performed simply, effectively and painlessly by a single operator. It also allows the evaluation of cases with urethromeatal alterations (stricture, hypospadias and meatotomy). KEY POINTS: • The clamp method enables RSUG to be performed simply and painlessly. • The clamp method requires only one operator and allows assessing urethromeatal alterations. • RSUG shows greater capacity for detecting anterior urethral strictures than RUG. • The clamp method achieves retrograde bladder filling in approximately 6 min. • CE-VSUG shows greater capacity for detecting strictures than VCUG.
PURPOSE: To describe the clamp method for performing retrograde sonourethrography (RSUG) and contrast-enhanced voiding sonourethrography (CE-VSUG) via the transperineal approach in male adults. MATERIALS AND METHODS: Prospective study of 113 males (14-86 years) with urethral strictures confirmed by urethrography who received sonourethrography via the clamp method between 2011 and 2015. The characteristic parameters of the quantitative variables were calculated and a comparative analysis of the qualitative variables was conducted using the McNemar test. RESULTS: RSUG was performed successfully in all the cases (n = 113) and detected 49 cases with anterior urethral strictures; the strictures in the proximal bulbar cone in five of them (10.2%) were not visualised on retrograde urethrography (RUG) (p < 0.05). CE-VSUG was performed successfully in 97 cases and observed posterior urethral strictures in 82; the bladder neck strictures in 6 of them (7.3%) were not observed on voiding cystourethrography (VCUG) (p < 0.05). Retrograde bladder filling was achieved in approximately 6 min. CONCLUSION: The clamp method enables RSUG and CE-VSUG to be performed simply, effectively and painlessly by a single operator. It also allows the evaluation of cases with urethromeatal alterations (stricture, hypospadias and meatotomy). KEY POINTS: • The clamp method enables RSUG to be performed simply and painlessly. • The clamp method requires only one operator and allows assessing urethromeatal alterations. • RSUG shows greater capacity for detecting anterior urethral strictures than RUG. • The clamp method achieves retrograde bladder filling in approximately 6 min. • CE-VSUG shows greater capacity for detecting strictures than VCUG.
Authors: Juan D Berná-Mestre; Juan D Berná-Serna; Martín Aparicio-Mesón; Manuel Canteras-Jordana Journal: Radiology Date: 2009-07 Impact factor: 11.105
Authors: Michael Mitterberger; Gozzi Christian; Germar Michael Pinggera; Georg Bartsch; Hannes Strasser; Leo Pallwein; Ferdinand Frauscher Journal: J Urol Date: 2007-03 Impact factor: 7.450