Value of MRUrethrographyin Comparison to Conventional RetrogradeUrethrography in the Surgical Treatment of Occlusive AnteriorUrethral Stricture
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2017, Vol 16, Issue 3
Abstract
Objective: To prospectively assess the value of MR urethrography compared to conventional Retrograde urethrography in the surgical management of obliterative anterior urethral stricture. Materials And Methods: 15 male patients along with 2 controls in the age group of 20-65, who presented to the radiology department with symptoms of urinary retention and in whom conventional retrograde urethrography (RUG) had been performed were taken up for study.MR urethrography (MRU)was performed in these patients after a time interval of about 1 week, were analysed and it was focused on location, number, length and the signal intensity of the stricture.Anterior urethral stricture is measured along the long axis of the fibrotic segment shown as low signal intensity on the sagittal T2-weighted images. Stricture length on RUG was determined by measuring the distance between the proximal end of the distal distended urethra and the distal end of the open proximal urethra.Strictures with length of < 2.5 were defined as “short strictures”, where as those > 2.5 as “long strictures”. Additionally, MR findings were evaluated with regard to the urethra proximal to the stricture, the corpora spongiosa surrounding the stricture, adjacent organ injuries, and the associated complications like fistulas, sinus tracts etc., Results And Analysis: Paired T test correlations was performed to correlate the imaging and surgical length of stricture. The mean measurement errors between the imaging and surgical values of stricture length were calculated in each imaging method.MRU proved to be 100% sensitive and specific comparedto RUG with a sensitivity and specificity of 80%, 33% for anteriorurethral stricture. Conclusion: MR Urethrography using T2 weighted sequences can be a valuable means of imaging patients with anterior urethral strictures as well as rest of urinary system.From our study MRU depicted stricture length, periurethral fibrosis and also associated pathologies with accuracy, there by assisting the surgeons to select the most appropriate surgical procedure.
Authors and Affiliations
Dr. V. Sudhakar MD,RD, Dr. S. Senthil Kumar DM,RD
Keywords
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- EP ID EP595785
- DOI 10.9790/0853-1603054146
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