The aim of our study is to assess a correlation between local patient specific elastic modulus distribution of the ascending aorta from a biaxial tensile test and MRI measurements of the elastic properties of the aorta.

A total of 70 patients referred for ascending aorta (AA) replacement underwent a preoperative cardiac-MRI for the evaluation the elastic properties and ascending aorta tissue was collected for biaxial testing to obtain maximum elastic modulus

Observational and prospective trial on medical data only. The patients are operated of planned aortic aneurysm without additional intervention.

The preoperative cardiac MRI are planned in standard of care.

Inclusion Criteria:

• patient referred for ascending aorta aneurysm requiering replacement
• elective patient

Exclusion Criteria:

• claustrophobia
• contraindication to performing cardiac MRI

200 patients operated in cardiac surgery unit of Dijon hospital starting in December 2018