Retrograde urethrogram
A retrograde urethrogram is a routine radiologic procedure (most typically in males) used to image the integrity of the urethra.
One use is in diagnosis of urethral stricture.[1]
Process
The procedure involves the injection of a radiopaque dye (contrast agent) into the urethral meatus of the glans penis in conjunction with x-ray imaging of the pelvic area.
It is used when there is suspicion of urethral trauma, such as a history of trauma to the area followed by pain, inability to void urine, or the presence of blood at the urethral meatus, a scrotal hematoma, free-floating prostate on rectal examination.
If a urethral injury is suspected, a retrograde urethrogram should be performed before attempting to place a Foley catheter. If there is a urethral disruption, a suprapubic catheter should be placed.
Leakage of the dye at any point between the bladder and tip of the penis suggests urethral injury (usually secondary to pelvic trauma) and is an indication for surgical intervention.
References
- ^ El-Ghar MA, Osman Y, Elbaz E, Refiae H, El-Diasty T (2009). "MR urethrogram versus combined retrograde urethrogram and sonourethrography in diagnosis of urethral stricture". Eur J Radiol. doi:10.1016/j.ejrad.2009.06.008. PMID 19608363.
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External links
- New England Journal of Medicine procedure videos: Male Urethral catheterization
- Ohio State University Patient Education Materials: Retrograde Urethrogram
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