Development of a Method to Construct Three-Dimensional Finite Element Models of Thoracic Aortic Aneurysms from MRI Images

Conference Paper · January 2001with3 Reads
DOI: 10.1109/MIAR.2001.930275 · Source: DBLP
Conference: Medical Imaging and Augmented Reality: First International Workshop, MIAR 2001, Hong Kong, China, June 10-12, 2001. Proceedings

    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