Open AccessEvaluation of stress urinary incontinence by computer‐aided vector‐based perineal ultrasound
Author(s) -
CHEN HUEYYI,
HUANG YULEN,
HUNG YAOCHING,
CHEN WENCHI
Publication year - 2006
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.1080/00016340600880951
Subject(s) - medicine , neck of urinary bladder , urinary incontinence , urology , stress incontinence , ultrasound , urinary bladder , radiology
Background. In this study, we compared the differences in dynamic changes of the bladder neck between women with and without urodynamic stress incontinence by computer‐aided vector‐based perineal ultrasound. Methods. The function and morphology of the lower urinary tract were assessed in 48 women with or without urodynamic stress incontinence by urodynamic study and computer‐aided vector‐based perineal ultrasound. Results. Patients in the urodynamic stress incontinence group had a significantly higher parity and higher prevalence of funneling of the bladder neck than participants in the control group ( p <0.05). After adjusting for parity, women with a corrected bladder neck movement ≥10 mm were 9.0 times more at risk of having urodynamic stress incontinence than women with a corrected bladder neck movement <10 mm ( p < 0.05). If we used corrected bladder neck movement ≥10 mm as the cut‐off point for diagnosis of urodynamic stress incontinence, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 77.8%, 66.7%, 87.5%, 50%, and 75%, respectively. Conclusions. The increase in corrected bladder neck movement is associated with functional impairment of urethral closure. Computer‐aided vector‐based perineal ultrasound is valuable in assessing anatomic change of the bladder neck, but it is not a sensitive tool for predicting urodynamic stress incontinence.