Dilatation of the ascending aorta is associated with presence . . . Enlarged ascending aorta may be an indication for precise quantification of regurgitant fraction with MRI, since symptomatic patients may need aortic valve repair when moderate regurgitation is present Keywords: Tetralogy of Fallot, Aortic insufficiency, Aortic dilatation, MRI
Aortic Stiffness : Current Understanding and Future Directions In most biologic materials, this relation is nonlinear, and the slope defines the intrinsic elastic properties of the wall material E is expressed by the formula: E = σ C where C is the arterial compliance Stiffness should be understood as the resistance to deformation
Aortic Valve Regurgitation: Pathophysiology and Implications . . . Aortic insufficiency (AI) or regurgitation is caused by the malcoaptation of the aortic valve (AV) cusps due to intrinsic abnormalities of the valve itself, a dilatation or geometric distortion of the aortic root, or by some combination thereof
Aortic elasticity and size are associated with aortic . . . Results: TOF patients showed aortic root dilatation (mean difference 7 8–8 8 mm, p<0 01 at all four predefined levels) and reduced aortic elasticity (pulse wave velocity in aortic arch 5 5 m s (1 2) vs 4 6 m s (0 9), p = 0 04; aortic root distensibility 1 4 10 −3 mm Hg (1 7) vs 5 7 10 −3 mm Hg (3 6), p<0 01)