基于经会阴盆底超声参数及阴道三维超声参数的盆腔器官脱垂合并隐匿性压力性尿失禁预测模型构建及验证

doi:10.3969/j.issn.1671-7171.2026.02.005

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Abstract 【Objective】 To investigate the construction and validation of a predictive model for pelvic organ prolapse (POP) combined with occult stress urinary incontinence (OSUI) based on transperineal pelvic floor ultrasound parameters and three-dimensional vaginal ultrasound parameters. 【Methods】 A total of 136 patients with pelvic organ prolapse diagnosed and treated in our hospital from January 2020 to October 2025 were selected. According to the 80/20 rule, they were randomly divided into a training set (n=106) and a validation set (n=30). The 106 patients in the training set were further divided into a combined group (n=58, with OSUI) and a non-combined group (n=48, without OSUI) based on the presence or absence of occult stress urinary incontinence. Transperineal pelvic floor ultrasound parameters [at rest: urethral inclination angle (R-UI), bladder-urethral posterior angle (R-RVA); under Valsalva maneuver: urethral inclination angle (V-UI), bladder-urethral posterior angle (V-RVA), urethral rotation angle (UR)] and three-dimensional vaginal ultrasound parameters [at rest: levator ani hiatus area (R-ALH); under Valsalva maneuver: levator ani hiatus area (V-ALH), bladder neck descent (BND), and funneling of the internal urethral orifice] were compared between the two groups. Risk factors for the occurrence of POP combined with OSUI were screened. A predictive model for POP combined with OSUI based on transperineal pelvic floor ultrasound parameters and three-dimensional vaginal ultrasound parameters was constructed and validated.【Results】 R-UI, V-RVA, UR, BND, V-ALH, and the incidence of funneling of the internal urethral orifice in the combined group were higher than those in the non-combined group (P<0.05). No statistically significant differences were found in R-RVA and V-UI between the two groups (P>0.05). R-UI, V-RVA, UR, BND, V-ALH, and funneling of the internal urethral orifice were identified as influencing factors for the occurrence of POP combined with OSUI (P<0.05). In the training set, the nomogram model predicted POP combined with OSUI with a sensitivity of 0.781, specificity of 0.799, and area under the curve (AUC) of 0.819. In the validation set, the nomogram model predicted POP combined with OSUI with a sensitivity of 0.776, specificity of 0.791, and AUC of 0.805. 【Conclusion】 The predictive model for POP combined with OSUI constructed based on transperineal pelvic floor ultrasound parameters and three-dimensional vaginal ultrasound parameters demonstrates good performance in assisting the prediction of POP combined with OSUI.

Key words： Uterine Prolapse Urinary Incontinence, Stress Ultrasonography Vagina

Received: 14 December 2025

PACS:

R694.54

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	YANG Jiayi
	WANG Jue

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YANG Jiayi,WANG Jue. Construction and Validation of a Predictive Model for Pelvic Organ Prolapse Combined with Occult Stress Urinary Incontinence Based on Transperineal Pelvic Floor Ultrasound Parameters and Three-Dimensional Vaginal Ultrasound Parameters[J]. JOURNAL OF CLINICAL RESEARCH, 2026, 43(2): 193-197.

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http://journal07.magtech.org.cn/yxlcyj/EN/10.3969/j.issn.1671-7171.2026.02.005 OR http://journal07.magtech.org.cn/yxlcyj/EN/Y2026/V43/I2/193

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