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Updated: Mar 24, 2026

Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse POP Quantification System
Published on: September 20, 2018
Assessment of postpartum symphysis pubis distention with 3D ultrasonography: a novel method
Serdar Aydın1, Rabia Zehra Bakar1, Çağrı Arıoğlu Aydın2
1Bezmialem University Obstetric and Gynecology Department, İstanbul, Turkey.
Objectives:
Determining the accuracy of three-dimensional (3D) sonographic measurement of symphysis pubis (SP) distension in comparison to plain X-ray pelvic radiographs and assessing the interperformer reliability of this method.
Methods:
Pelvic X-ray was performed on 86 women who delivered singleton babies within 36 h of delivery then each woman was examined by 3D transperineal ultrasound imaging by two sonogrographers.
Results:
Measurements of SP with 3D transperineal ultrasonography in comparison to pelvic X-ray showed 95% limits of agreement. Interperformer reproducibility was substantial (interclass correlation coefficient 0.66-0.70) for measures of SP.
Conclusions:
Pubic symphysis width, superior pubic ligament length, and SP height can be reliably measured with 3D ultrasonography.
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