Maria Alejandra Bedoya Velez MD, Presenter: Nothing to Disclose

Hansel J. Otero MD, Abstract Co-Author: Nothing to Disclose

Dana A. Weiss MD, Abstract Co-Author: Nothing to Disclose

Kassa Darge MD, PhD, Abstract Co-Author: Nothing to Disclose

1. Retrograde urethrography (RUG) is the fluoroscopic examination of the urethra via retrograde contrast filling. It enables anatomic detail in the evaluation of the urethra in boys. There is very limited pediatric literature available on this topic, which makes its performance and interpretation challenging. 2. The principal indications of RUG are urethral trauma, stricture, rectourethral fistula, and prostatic utricle. In urethral injuries, the contrast extravasation occurs in the extraperitoneal space if the injury is above the urogenital diaphragm; but if the injury is below the urogenital diaphragm, the contrast extravasation is within borders of dartos (Colles) fascia 3. Different modifications of the RUG technique are performed based on the clinical indication. These modifications include subsequent voiding cystourethrogram (VCUG), simultaneous VCUG, and retrograde pericatheter urethrogram.  

1) Normal embryology and anatomy of the male urethra 2) Imaging modalities of the urethra 3) Definition of RUG 4) Indications a. Major indications: urethral injury and urethral stricture b. Minor indications: rectourethral fistula and prostatic utricle 5) Techniques Preparation, Positioning, Devices, Procedure, Modifications: subsequent VCUG, simultaneous VCUG, and retrograde pericatheter urethrogram.  

http://abstract.rsna.org/uploads/2014/14005712/14005712_glrk.pdf

Bedoya Velez, M, Otero, H, Weiss, D, Darge, K, Retrograde Urethrography (RUG): Indications, Techniques and Outcome in Children.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14005712.html