Validation of in-vitro strain measurement by Magnetic Resonance Imaging of realistic abdominal aortic aneurism phantom

2016

International audience; Preoperative diagnostic protocols of abdominal aortic aneurysm (AAA) are today mainlybased on the measurement of the aortic maximum diameter. This measurement is insufficient becausethe diameter is not a discriminant variable for predicting the rupture of the aorta. Recent works showthe importance of determining the wall stress both due to the aortic shape, the pressure and the bloodflow. The problem is very complex and requires the implementation of sophisticated models takinginto account the heterogeneity of tissues and the complexity of flow. Then it is essential to validatethe capacity of existing medical imaging systems to provide reliable measurements that will…