TY - GEN
T1 - Fem simulation with realistic sliding effect to improve facial-soft-tissue-change prediction accuracy for orthognathic surgery
AU - Kim, Daeseung
AU - Mai, Huaming
AU - Chang, Chien Ming
AU - Ho, Dennis Chun Yu
AU - Zhang, Xiaoyan
AU - Shen, Shunyao
AU - Yuan, Peng
AU - Zhang, Guangming
AU - Gateno, Jaime
AU - Zhou, Xiaobo
AU - Liebschner, Michael A.K.
AU - Xia, James J.
N1 - Publisher Copyright:
© Springer International Publishing Switzerland 2016.
PY - 2016
Y1 - 2016
N2 - It is clinically important to accurately predict facial soft tissue changes following bone movements in orthognathic surgical planning. However, the current simulation methods are still problematic, especially in clinically critical regions, e.g., the nose, lips and chin. In this study, finite element method (FEM) simulation model with realistic tissue sliding effects was developed to increase the prediction accuracy in critical regions. First, the facial soft-tissuechange following bone movements was simulated using FEM with sliding effect with nodal force constraint. Subsequently, sliding effect with a nodal displacement constraint was implemented by reassigning the bone-soft tissue mapping and boundary condition for realistic sliding movement simulation. Our method has been quantitatively evaluated using 30 patient datasets. The FEM simulation method with the realistic sliding effects showed significant accuracy improvement in the whole face and the critical areas (i.e., lips, nose and chin) in comparison with the traditional FEM method.
AB - It is clinically important to accurately predict facial soft tissue changes following bone movements in orthognathic surgical planning. However, the current simulation methods are still problematic, especially in clinically critical regions, e.g., the nose, lips and chin. In this study, finite element method (FEM) simulation model with realistic tissue sliding effects was developed to increase the prediction accuracy in critical regions. First, the facial soft-tissuechange following bone movements was simulated using FEM with sliding effect with nodal force constraint. Subsequently, sliding effect with a nodal displacement constraint was implemented by reassigning the bone-soft tissue mapping and boundary condition for realistic sliding movement simulation. Our method has been quantitatively evaluated using 30 patient datasets. The FEM simulation method with the realistic sliding effects showed significant accuracy improvement in the whole face and the critical areas (i.e., lips, nose and chin) in comparison with the traditional FEM method.
UR - http://www.scopus.com/inward/record.url?scp=84984858910&partnerID=8YFLogxK
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U2 - 10.1007/978-3-319-43775-0_3
DO - 10.1007/978-3-319-43775-0_3
M3 - Conference contribution
AN - SCOPUS:84984858910
SN - 9783319437743
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 27
EP - 37
BT - Medical Imaging and Augmented Reality - 7th International Conference, MIAR 2016, Proceedings
A2 - Liao, Hongen
A2 - Zheng, Guoyan
A2 - Lee, Su-Lin
A2 - Cattin, Philippe
A2 - Jannin, Pierre
PB - Springer Verlag
T2 - 7th International Conference on Medical Imaging and Augmented Reality, MIAR 2016
Y2 - 24 August 2016 through 26 August 2016
ER -