The purpose of this study is to determine whether new magnetic resonance imaging techniques can be used as a biomarker of aortic disease severity in patients with Marfan syndrome.
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Difference in 3D aortic displacement in millimeters between Marfan patients (MFS) and healthy volunteers.
Timeframe: Baseline
Difference in pulse wave velocity, in meters per second between Marfan patients and healthy volunteers.
Timeframe: Baseline
Difference in oscillatory shear index (dimensionless) expressed in m/s between Marfan patients and healthy volunteers
Timeframe: Baseline
Change in aortic displacement expressed in millimeters , between MFS patient aortas prior to compared to after PEARS procedure or conventional aortic surgery.
Timeframe: Change from baseline to 6 months after surgery
Change in aortic pulse wave velocity (meters/second), between MFS patient aortas prior to compared to after PEARS procedure or conventional aortic surgery.
Timeframe: Change from baseline to 6 months after surgery
Change in oscillatory shear index (dimensionless) between MFS patient aortas prior to compared to after PEARS procedure or conventional aortic surgery.
Timeframe: Change from baseline to 6 months after surgery