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Muscles of the Pelvic Floor and Perineum01:26

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Graph Pattern Matching based reassembly - 3DGPM.

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Related Experiment Video

Updated: May 25, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
07:41

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Geometric modeling of pelvic organs.

Thierry Bay1, Jean-Christophe Chambelland, Romain Raffin

  • 1LSIS Laboratory, UMR CNRS 6168, ESIL, Campus de Luminy, Case postale 925, 13288 Marseille Cedex 9, France. thierry.bay@lsis.org

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|January 19, 2012
PubMed
Summary

This study models patient-specific pelvic organ dynamics for surgical planning. The MoDyPe project creates detailed 3D models of pelvic organs to aid surgeons in choosing the best invasive methods.

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Area of Science:

  • Biomedical Engineering
  • Computational Anatomy
  • Medical Imaging

Background:

  • Pelvic floor disorders arise from altered spatial configurations of pelvic organs (bladder, rectum, uterus, vagina).
  • Surgical interventions for these disorders are complex and require precise planning.
  • Existing methods lack patient-specific dynamic modeling for surgical decision-making.

Purpose of the Study:

  • To develop a patient-specific computational model of pelvic organ dynamics.
  • To support surgical decision-making for pelvic floor disorders.
  • To create a framework for simulating soft body dynamics of pelvic organs.

Main Methods:

  • Utilizing periodic B-splines and offsets to generate thick surfaces of hollow pelvic organs.
  • Implementing a Hoschek-like iterative method to minimize the distance between organ surfaces and segmented 3D data.
  • Controlling surface discretization and exporting hexahedral models for dynamic analysis.

Main Results:

  • Successful generation of patient-specific, thick-walled 3D models of pelvic organs.
  • Development of a robust method for surface reconstruction and control point optimization.
  • Creation of input data suitable for soft body dynamics simulation.

Conclusions:

  • The MoDyPe project provides a novel approach for patient-specific pelvic organ modeling.
  • This methodology can enhance surgical planning and improve outcomes for pelvic floor disorders.
  • The developed hexahedral models facilitate accurate dynamic simulations of pelvic organ behavior.