Aortic stiffness is an important biomarker that can provide more accurate rupture potential of abdominal aortic aneurysm (AAA) than diameter. Aortic MR elastography (AMRE) is a non-invasive technique to estimate aortic stiffness and has not been validated against gold standard methods. The aim of the study is to estimate aortic stiffness in AAA-induced porcine model using in-vivo AMRE, and compare it with histopathology and burst testing. Results demonstrated that AAA stiffness was significantly higher than normal aorta (p<0.002), while %elastin and burst pressure was significantly lower in AAA (p<0.0001). Aortic stiffness showed significant negative correlation to %elastin and burst pressure.