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KMID : 0604320040100010011
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Journal of the Korean Society Picture Archiving and Communication System
2004 Volume.10 No. 1 p.11 ~ p.17
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The effect of the virtual surgical operation with craniofacial CT data
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Cho Jin-Ho
Yoo S.-K.
Kim Hee-Joung
Kim Yong-Oock
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Abstract
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The goal of this study is representing medical two-dimensional (2D) sectional image to three-dimensional (3D) volume by VRML (Virtual Reality Modeling Language) and JavaScript. Furthermore, we suggest the virtual surgical operation with craniofacial CT data. CT images were obtained from one patient with projected maxilla and small central face. We made object map of Bone segment images generated by sagittal splitting of mandible ramal osteotomy and Lefort I, II, III of maxilla osteotomy. The mandible and Lefort I, II, III of maxilla in the CT volume were segmented and rendered to VRML
polygonal surfaces by marching cube algorithm. We gave each surface specified morphing route and fuse each surface into one volume data. We embedded user interface tool with JavaScript routines to display 3D surface models, set transparencies of 3D surface models and give optional movability to 3D models. The developed application has several advantages. First, the user can easily contact to this application on the web and take intuitive information more efficiently. Secondly, the virtual surgical operation is cheaper than the osteotomy using cephalometry or using rapid prototyping. Finally, the doctor can simulate without restriction of simulation times. Our suggestion will be helpful on diagnostic plastic surgery, interest of patients and surgical operations.
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KEYWORD
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VRML, WEB Visualization, 3D display, Morphing, Volume rendering
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