Geometric modeling of pelvic organs

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.