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.
Study Type
OBSERVATIONAL
Enrollment
200
Dijon University Hospital
Dijon, France
RECRUITINGaortic compliance of ascending aorta (mm2/mmHg)
aortic compliance is a local measurement of elastic properties which is obtained with cardiac MRI images by computer processsing
Time frame: preoperative cardiac MRI performing between 1 month and 1 day before surgery
maximum elastic modulus (MPa) of ascending aorta
maximum elastic modulus is a local measurement of elastic properties which is obtained by biaxial testing
Time frame: biaxial testing performing between 1 and 6 hours after procedure
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