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

fYear

2001

fDate

2001

Firstpage

131

Lastpage

136

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Medical Imaging and Augmented Reality, 2001. Proceedings. International Workshop on

Conference_Location

Shatin, Hong Kong

Print_ISBN

0-7695-1113-9

Type

conf

DOI

10.1109/MIAR.2001.930275

Filename

930275