Re: double balloon positive pressure urethrography is a more sensitive test than voiding cystourethrography for diagnosing urethral diverticulum in women.
Byrne DJ.
J Urol. 2000 Jun;163(6):1891.
PMID:10799218
Radiologic diagnosis and surgical treatment of urethral diverticulum in women. A reappraisal of voiding cystourethrography and positive pressure urethrography.