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Front. Inform. Technol. Electron. Eng.  2010, Vol. 11 Issue (7): 504-513    DOI: 10.1631/jzus.C0910349
    
Cranio-maxillofacial surgery simulation based on pre-specified target face configurations
Sheng-zheng Wang*,1,2, Jie Yang1, James C. Gee3
1 Institute of Image Processing & Pattern Recognition, Shanghai Jiao Tong University, Shanghai 200240, China 2 Merchant Marine College, Shanghai Maritime University, Shanghai 200235, China 3 Department of Radiology, University of Pennsylvania, Philadelphia 19104, PA, USA
Cranio-maxillofacial surgery simulation based on pre-specified target face configurations
Sheng-zheng Wang*,1,2, Jie Yang1, James C. Gee3
1 Institute of Image Processing & Pattern Recognition, Shanghai Jiao Tong University, Shanghai 200240, China 2 Merchant Marine College, Shanghai Maritime University, Shanghai 200235, China 3 Department of Radiology, University of Pennsylvania, Philadelphia 19104, PA, USA
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摘要： This paper presents a novel method for assisting surgeons in automatically computing an optimal surgical plan by directly specifying the desired correction to a facial outline. First, the desired facial appearance is designed using a 3D sculpturing tool, while the cut regions of the skull are defined based on facial anatomy. Then, the deformation of the face meshes is performed using an improved biomechanical model in which virtual external forces are driven by the displacements corresponding to the differences of node coordinates between the original and specified face meshes, and free nodes and fixed nodes are defined in terms of the contact surfaces between the soft tissues and the bones within the cut regions. Finally, the shape of the contact surfaces is updated following the deformation of the soft tissues. After registering the deformable contact surfaces and the cut surfaces, the final positions of the cut bones are estimated. Evaluation of preliminary experimental results quantitatively shows the effectiveness of the proposed approach.
关键词： Surgical planning;  Biomechanical modeling;  Soft tissue deformation;  Plastic surgery    
Abstract: This paper presents a novel method for assisting surgeons in automatically computing an optimal surgical plan by directly specifying the desired correction to a facial outline. First, the desired facial appearance is designed using a 3D sculpturing tool, while the cut regions of the skull are defined based on facial anatomy. Then, the deformation of the face meshes is performed using an improved biomechanical model in which virtual external forces are driven by the displacements corresponding to the differences of node coordinates between the original and specified face meshes, and free nodes and fixed nodes are defined in terms of the contact surfaces between the soft tissues and the bones within the cut regions. Finally, the shape of the contact surfaces is updated following the deformation of the soft tissues. After registering the deformable contact surfaces and the cut surfaces, the final positions of the cut bones are estimated. Evaluation of preliminary experimental results quantitatively shows the effectiveness of the proposed approach.
Key words: Surgical planning    Biomechanical modeling    Soft tissue deformation    Plastic surgery
收稿日期: 2009-06-12 出版日期: 2010-07-06
CLC:  TP319  
基金资助: Project supported by the Academic Discipline Project (No. S30602) and the Shanghai Science Foundation of China (No. 08ZR1409300)
通讯作者: Sheng-zheng WANG     E-mail: szwang.smu@gmail.com
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引用本文:

Sheng-zheng Wang, Jie Yang, James C. Gee. Cranio-maxillofacial surgery simulation based on pre-specified target face configurations. Front. Inform. Technol. Electron. Eng., 2010, 11(7): 504-513.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C0910349    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2010/V11/I7/504

[1] Chao Li, Xiao-hui Zheng, Xing Meng, Li Wang, Chun-xiao Xing. [J]. Frontiers of Information Technology & Electronic Engineering, 2010, 11(11): 872-881.