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Voiding cystourethrography in female stress incontinence
1Department of Radiology, The University of Iowa Hospitals and Clinics, Iowa City, 52242-1009, USA.
AJR. American Journal of Roentgenology
|March 1, 1996
Summary
Voiding cystourethrography (VCUG) has limited accuracy in diagnosing stress incontinence in women. Detrusor instability can lead to false positives, and anatomical measurements do not reliably predict incontinence.
Area of Science:
- Urology
- Gynecology
- Diagnostic Imaging
Background:
- Stress urinary incontinence (SUI) is a common condition affecting women.
- Voiding cystourethrography (VCUG) is a diagnostic tool used to evaluate urinary incontinence.
- The diagnostic accuracy of VCUG for SUI requires further investigation.
Purpose of the Study:
- To assess the sensitivity and predictive values of VCUG in detecting SUI in women.
- To determine the association between urethroceles and SUI on VCUG.
- To correlate urethral anatomical measurements with SUI and urethrocele presence.
Main Methods:
- 159 women with incontinence or voiding dysfunction were evaluated.
- Voiding cystourethrography (VCUG) and urodynamic studies (UDS) were performed.
- Urethral anatomical measurements were analyzed.
Main Results:
- VCUG detected SUI in 76% of women with a history of leakage.
- The positive predictive value of VCUG for SUI was 56%, with a negative predictive value of 74%.
- Detrusor instability caused false-positive SUI diagnoses in 21 women; urethrocele presence did not correlate with SUI.
Conclusions:
- VCUG has limitations in evaluating SUI due to false positives from detrusor instability.
- Urethral anatomical measurements and urethrocele presence have limited predictive value for SUI.
- Urodynamic study remains crucial for accurate SUI diagnosis.