Gallbladder Removal Simulation for Laparoscopic Surgery Training: A Hybrid Modeling Method
- Gallbladder Removal Simulation for Laparoscopic Surgery Training: A Hybrid Modeling Method
- 김영준; 장동준; 김정식; 박세형
- deformable body modeling; gallbladder removal; laparoscopic surgery; training simulation
- Issue Date
- Journal of computer science and technology
- VOL 28, NO 3, 499-507
- Laparoscopic surgery has many advantages, but it is di±cult for a surgeon to achieve the necessary surgical
skills. Recently, virtual training simulations have been gaining interest because they can provide a safe and e±cient learning
environment for medical students and novice surgeons. In this paper, we present a hybrid modeling method for simulating
gallbladder removal that uses both the boundary element method (BEM) and the ¯nite element method (FEM). Each
modeling method is applied according to the deformable properties of human organs: BEM for the liver and FEM for
the gallbladder. Connective tissues between the liver and the gallbladder are also included in the surgical simulation.
Deformations in the liver and the gallbladder models are transferred via connective tissue springs using a mass-spring
method. Special e?ects and techniques are developed to achieve realistic simulations, and the software is integrated into a
custom-designed haptic interface device. Various computer graphical techniques are also applied in the virtual gallbladder
removal laparoscopic surgery training. The detailed techniques and the results of the simulations are described in this paper.
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