Title :
Development of a method to construct three-dimensional finite element models of thoracic aortic aneurysms from MRI images
Author :
Kato, Yoko ; Matsumoto, Takeo ; Kumagai, Kiichiro ; Akimoto, Hiroji ; Tabayashi, Koichi ; Sato, Masaaki
Author_Institution :
Graduate Sch. of Eng., Tohoku Univ., Sendai, Japan
Abstract :
Most patients die when thoracic aortic aneurysms rupture. In order to avoid the ruptures, the aneurysms are replaced with aortic prostheses when their maximum diameter exceeds 5 cm. Because this criterion is based on the experiences, some aneurysms rupture even if the diameters are smaller than this criterion. To treat the aneurysm properly, it is necessary to find out the new criterion. The rupture is thought to have a close relationship with the stress in the wall. Hence, there is much research about the stress, but this research uses the straight tube model. The model shape does not seem appropriate to a thoracic aorta shape. Hence, we developed the method to construct three-dimensional finite element models of thoracic aortic aneurysms from MRI images
Keywords :
biomedical MRI; blood vessels; cardiovascular system; finite element analysis; medical image processing; 3D FEM; MRI; aortic prostheses; blood vessel stress; magnetic resonance imaging; medical imaging; straight tube model; thoracic aortic aneurysms; three-dimensional finite element models; Abdomen; Aneurysm; Biomedical imaging; Blood; Finite element methods; Magnetic resonance imaging; Prosthetics; Shape; Spline; Stress;
Conference_Titel :
Medical Imaging and Augmented Reality, 2001. Proceedings. International Workshop on
Conference_Location :
Shatin, Hong Kong
Print_ISBN :
0-7695-1113-9
DOI :
10.1109/MIAR.2001.930275