title: Applicability of perineal sonography in anatomical evaluation of bladder neck in women with and without genuine stress incontinence.
abstract: Thirty-seven patients with proven genuine stress incontinence (GSI) underwent ultrasound study to evaluate the bladder neck position relative to the symphysis pubis. Sixty-five continent women including 40 parous and 25 nulliparous women were recruited as a control group. Several parameters were found to be statistically different between incontinent and control groups (P < 0.01). If 28 degrees or 13 mm were used as the cut-off point for rotational angle (RA) and descent of bladder neck (DBN), the sensitivity, specificity, and positive and negative predictive values were 78.0%, 76.9%, 64.3%, and 33.3%, respectively. The specificity and positive predictive value for GSI increased to 83.1% and 67.6% if these two parameters were used together. Perineal sonography is valuable in assessing anatomic change of the bladder neck, but it is not a sensitive tool for predicting GSI.
authors.affiliation: Department of Obstetrics & Gynecology, Chung Shan Medical & Dental College Hospital, Taichung, Taiwan.
authors.forename: G D
authors.initials: GD
authors.lastname: Chen
authors.forename: T H
authors.initials: TH
authors.lastname: Su
authors.forename: L Y
authors.initials: LY
authors.lastname: Lin
mesh_terms: D000328:Adult; D019160:Endosonography / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D010502:Perineum / Q000000981:diagnostic imaging*; D011237:Predictive Value of Tests; D014521:Urethra / Q000000981:diagnostic imaging; D001743:Urinary Bladder / Q000000981:diagnostic imaging*; D014550:Urinary Incontinence, Stress / Q000000981:diagnostic imaging*