TY - GEN
T1 - Linear elastic fracture model for brain surgery simulation
AU - Nakayama, Masano
AU - Konno, Atsushi
AU - Jiang, Xin
AU - Abiko, Satoko
AU - Uchiyama, Masaru
PY - 2011
Y1 - 2011
N2 - Blunt dissection is a fundamental technique in brain surgery to expose an affected or to separate tissues without cutting. This paper addresses a linear elastic fracture model to simulate blunt dissection in a virtual brain surgery. Blunt dissection is simulated by fracturing a linear elastic finite elements when the stress applied to the element exceeds the specified fracture stress. However if an element is fractured without any consideration for connections with adjacent elements, the fracture may produce some structurally unstable elements. The structurally unstable elements cause computational instability. In order to avoid this instability problem, an element fracture method is proposed. The fracture model is verified by comparing the results of blunt dissection simulation with the result of experiments.
AB - Blunt dissection is a fundamental technique in brain surgery to expose an affected or to separate tissues without cutting. This paper addresses a linear elastic fracture model to simulate blunt dissection in a virtual brain surgery. Blunt dissection is simulated by fracturing a linear elastic finite elements when the stress applied to the element exceeds the specified fracture stress. However if an element is fractured without any consideration for connections with adjacent elements, the fracture may produce some structurally unstable elements. The structurally unstable elements cause computational instability. In order to avoid this instability problem, an element fracture method is proposed. The fracture model is verified by comparing the results of blunt dissection simulation with the result of experiments.
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U2 - 10.1109/AIM.2011.6027109
DO - 10.1109/AIM.2011.6027109
M3 - Conference contribution
AN - SCOPUS:80053955754
SN - 9781457708381
T3 - IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM
SP - 333
EP - 338
BT - 2011 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2011
T2 - 2011 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, AIM 2011
Y2 - 3 July 2011 through 7 July 2011
ER -