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>>35 > http://www.jstage.jst.go.jp/article/jsmbe/51/Supplement/51_R-252/_pdf/-char/en > > Page 1 > > > 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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