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First page of Impact of 3D Reconstruction Combined with Engineering Software Analysis of Pelvic Floor Muscle Morphology on Sexual Dysfunction in Patients with Pelvic Organ Prolapse

Objective: To evaluate the relationship between the deformation of pelvic floor muscles, which primarily participate in sexual activity, in non-prolapse patients compared to those with pelvic organ prolapse (POP), using MRI combined with 3D reconstruction and engineering software. Methods: This study retrospectively analyzed 100 patients with sexual activity needs, including 53 diagnosed with POP and 47 without POP. MRI images of relevant pelvic floor muscles were reconstructed in 3D using Mimics software. The IGS models generated with Geomagic Wrap software were assigned material properties and analyzed in SolidWorks. The muscle models were transformed into visualized solid models, yielding results for mass, volume, and surface area of the pelvic floor muscles involved in sexual activity. These parameters were visualized among POP and non-POP patients, allowing for a comparative analysis. Result: Significant differences (P<0.05) were observed between the two groups in terms of the volume, mass, and measurable thickness range (thicker regions) of the bulbospongiosus muscle, as well as the surface area of the pubococcygeus muscle and the levator ani. Conclusion: By using 3D reconstruction and engineering software to visualize muscle models, morphological changes in the bulbospongiosus, pubococcygeus, and levator ani muscles are highlighted. This study lays a theoretical foundation for understanding the functional factors contributing to sexual dysfunction in patients with POP.

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2025
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