0000000001286350
AUTHOR
A. Lalande
showing 2 related works from this author
Comparison of Flow Measurement by 4D Flow Magnetic Resonance Imaging and by Particles Image Velocimetry on Phantom of Abdominal Aortic Aneurysm
2016
International audience; Predicting the rupture of Aortic Aneurysms is a complex problem that interests, from several decades, many researchers. The works on this issue are very complex, involving both the study of mechanical behavior of the artery as the flow of blood. The Magnetic Resonance Imaging (MRI) technique allows to obtain anatomic information of the arteries, than the flow inside thereof. The goal of this study is an inter comparison betweenflow data from MRI and those obtained by Particle Image Velocimetry (PIV). An experimental device simulating hemodynamic circulation is used. Initially in order to validate the device, the flow in a cylindrical glass tube is measured by these t…
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…