A Comparative Study of Aortic Wall Stress Using Finite Element Analysis for Ruptured and Non-ruptured Abdominal Aortic Aneurysms

Slice with outline of aneurysm highlighted.

Cloud of points from 46 slices.

Closed curves through the points on each slice.

Surface generated from the curves.

3D Geometry of AAA following surface rendering.

Finite element model of an AAA.

3D contour plot of wall stress over the surface of an AAA. The wall stress values are colour coded, red representing areas of high stress and blue for low stress.

(a) Point of rupture in CT (b) correlated with area of high stress in finite element analysis. Sight of rupture and area of high stress are indicated by arrows.

Effect of wall thickness on wall stress.