Significance of perineal sonography of different bladder capacity in the diagnosis of women with stress urinary incontinence

Objective To analyze whether the various index signs of the patient with stress urinary incontinence are affected by the different urine bladder capacity or not,and to determine the role of perineal sonography in diagnosis of women with SUI.Methods (1)Ten patients with SUI, without drinking and eating for four hours, were perfused bladder conversely. During perineal ultrasonography, distance from the bladder neck to the posterior midpoint of symphysis pubis(B), distance of bladder neck mobility, posterior urethra-vesical angle(αr、αs) and the vesical neck rotational angle(θ) were all measured at rest and during stress in different vesical capacity respectively.(2)Fourty-two patients with stress urinary incontinence and thirty-five control patients were included in the study. During perineal ultrasonography,distance Mu, distance B, angle α and angle θ were all measured at rest and during stress.Results The various index signs of Mu, Br, Bs, αr, αs and θ of the patient with SUI in different urine bladder capacity were identical(P0.05).The mean distance Mu and θ angle in the study group were significantly higher than in the control one.The mean distance B and α angle were found to be significantly different between the two groups both at rest and during stress(P0.01). The severity of SUI had significant positive correlation with the Mu、ΔB and θ angle. Conclusion (1)The different urine bladder capacity has no influence on various index signs of Mu, Br, Bs, αr, αs and θ of the patient with SUI. (2)The hypermobility of the urethra is one of factors in SUI patients. (3) Perineal ultrasonography plays an important role in diagnosing patients with SUI.