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35: YAMAGUTIseisei 2019/07/12(金)20:46 ID:f5bVsPQ5K(1/3) AAS
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Organ Variation 3D Model Library for Surgery Simulators
a) M. Komori, b) K. Tagawa, b) H. Tanaka, a) Y. Kurumi, a) S. Morikawa
Abstract
― In actual surgery, various types of variations of organ or duct often appear.
To simulate an operation of such atypical cases on a VR surgery simulator, a 3D model library of variation has been developed.
Schema of variation types were collected from case reports and textbook and 3D models of those organ or duct were built.
Those models were stored in a common format and modularized to connect with an adjacent organ in common way.
A library of variation in gallbladder duct running was constructed and adopted to a VR laparoscopic surgery simulator.
I.
BACKGROUND
A VR surgery simulator is generally used for medical students or novice surgeons [1].
Most of those simulators have a fixed scenario and normal organ structure.
However, a variation of organ or duct is often found in practical surgery.
To avoid malpractice in those cases, the anomaly should be identified quickly.
The 3D library of organ variation is intended for interactive training cases with such atypical structure of operating fields by a surgery simulator.
A VR laparoscopic surgery simulator is under development (Fig. 1).
This original simulator can merge modularized organs or ducts with variation structure [2].
In this simulation system, multi-resolution modeling and binary tree expression are employed.
Therefore, a modularized organ/duct model in the variation library is expressed by triangular patches with binary tree structure information.
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