OP 128. 3-Dimensional Modeling of the Female Pelvis from Anatomical Sections. A New Approach to Three-Dimensional Reconstruction of Complex Anatomical Structures

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Giraudet, Cosson, Rubod, Patrouix, Brieu, Fontaine, Lecomte-Grobras

Chair(s): Attila Balogh, Thomas Hubert & Krisztián Szigeti

16:20 - 16:30h at Erszebet Room (A)

Categories: Oral Session, Medical Imaging and Simulations

Session: Oral Session XIV - Surgical Anatomy

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Background
Suspension and support of pelvic organ are provided by perineum and pelvic floor muscles, as well as ligaments and fascias. Mecanisms of pelvic organ prolapse are complex and misunderstood. A simulation model of pelvic mobilities would be helpfull to better understand their mechanism. The anatomy of the female pelvis is still imperfectly known and existing models include only the levator ani muscle regardless of the perineum muscles and ligaments. The anatomy of these models has been rebuilt only from pelvic MRI. We know inter and intra observer differences of MRI segmentation. It's necessary to use other method to validate the reconstruction. The aim of the study was to obtain a complete anatomical model of female pelvis with muscles and ligaments.

Material and Methods
Dissections were performed to highlight the different anatomical structures and a three dimensions scanner was performed at each step of the dissection. Anatomical reconstruction obtained from the segmentation of the previously performed MRI was comparde with the results of the 3D scanner.

Result
We obtained a complete anatomical model of the female pelvis including organs, muscles and ligaments. Comparison of 3D scanner with MRI segmentation allowed us to validate the anatomy of our anatomical modele.

Conclusion
This model will be used for teaching anatomy of the female pelvis.The methods used to obtain this anatomical model could be applied to other complex anatomical structures. We know biomechanical properties of pelvic tissues to simulate pelvic mobilities. We should better understand the pathophysiology of prolapse.