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Journal of the Korean Academy of Rehabilitation Medicine 1998;22(5):1049-1055.
Sensitivity of Transrectal Ultrasonography and Voiding Cystourethrography for Appearing of the Opening of Bladder Neck or External Sphincter.
Park, Byung Kyu , Ko, Hyun Yoon , Cha, Young Hoon
Department of Rehabilitation Medicine, Pusan National University College of Medicine.
요도괄약근 평가를 위한 경직장 초음파검사와 배뇨성 방광요도 조영술
박병규, 고현윤, 차영훈
부산대학교 의과대학 재활의학교실
Abstract

Objective
To compare the sensitivity of transrectal ultrasonography (TRUS) and voiding cystourethrography (VCUG) in assessing the opening of bladder neck and external urethral sphincter during the filling phase and voiding phase.


Method
TRUS and VCUG were performed for visualizing the opening of bladder neck and external sphincter in 36 patients with a neurogenic bladder dysfunction and the sensitivity of two techniques was compared. The finding was considered to be a true positive when the opening of internal or external sphincter was visualized on either one of TRUS or VCUG.


Results
The sensitivity of TRUS was significantly higher than VCUG in visualizing the opening of bladder neck during the filling phase. However, there was no significant difference in the sensitivity of two techniques for the opening of external sphincter during filling phase or the opening of internal and external sphincters during voiding phase.


Conclusion
The results demonstrate that the TRUS provides a satisfactory information and can be an alternative method to the radiological VCUG in visualizing the opening of bladder neck or external sphincter.

Key Words: Transrectal ultrasonography, Cystourethrography, External urethral sphincter, Bladder neck
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