Virtual surgery for choledocholithiasis
10.3760/cma.j.issn.1673-9752.2009.05.019
- VernacularTitle:胆总管结石患者的可视化仿真手术研究
- Author:
Chihua FANG
;
Yunqiang TANG
;
Yanpeng HUANG
;
Fengping PENG
;
Jiahui PAN
;
Susu BAO
- Publication Type:Journal Article
- Keywords:
Choledocholithiasis;
Three-dimensional reconstruction;
Virtual surgery
- From:Chinese Journal of Digestive Surgery
2009;8(5):367-369
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the image segmentation, three-dimensional (3D) reconstruction and simulation operation of choledocholithotomy and T-tube drainage based on the computed tomagraphy (CT) data of patient with choledocholithiasis. Methods Patient with choledocholithiasis underwent 64-slice spiral CT imaging. The images segmentation and 3D reconstruction were performed by Medical Image Process System (MIPS) to construct the 3D model of the hepatobiliary system. The model was modified by FreeForm Modeling System. The virtual surgical instruments were developed by GHOST SDK software, and were imported to the virtual surgery. Results The data of plain, arterial phase, venous phase and portal venous phase scanning were collected, and the data stored in DICOM format were transformed to BMP format. A model of the hepatobiliary system was constructed after the data was segmented by MIPS, and then the model was exported in the STL format. The data in STL format were imported to FreeForm Modeling System for smoothing the model. Different structures were assigned different colors to make the model more vivid. The self-developed virtual surgical instruments were imported to the system, and the virtual surgery for choledocholithiasis was performed with PHANToM. Conclusions With the help of MIPS, the image segmentation and 3D reconstruction of the model are finished rapidly and effectively. After the virtual surgical instruments are developed in FreeForm Modeling System, the virtual surgery can be achieved in the 3D model with the assistance of PHANToM.
