Estimation of Biomechanical Aortic Wall Properties in Healthy and Aneurysmal Aortas Using Novel Imaging Techniques

The primary aim of this study is to establish the practicality of using two novel imaging modalities for the assessment of biomechanical properties of the aorta.

Inclusion Criteria: * Patients \>18 years of age with ability to provide informed consent. * Patients with either symptomatic or asymptomatic AAA as defined by aortic diameter ≥ 1.5x normal diameter. * Patients with non-aneurysmal aortas who require aortic contrast imaging or echocardiography for preoperative planning or other reason. Exclusion Criteria: * Patients with contraindication to IV contrast such as allergy or severe kidney dysfunction. * Patients who do not require contrast imaging or echocardiogram as part of their care plan. * Terminally ill patients, and patients with estimated life expectancy of ≤ 6 months. * Patients unable to tolerate magnetic resonance imaging.