Abstract #2564

Ascending Aortic Nomograms derived from Contrast Enhanced Magnetic Resonance Angiography: Preliminary Values for Sex, Body Surface Area and Age Related Variability

Lara Mrak¹, Christopher J. François¹, Sonja Kinner^1,2, and Mark L. Schiebler¹

¹Radiology, UW-Madison, Madison, WI, United States, ²University Hospital Essen, Essen, Germany

The size of the ascending aorta is of critical importance for patient survival as it is directly related to the likelihood of aortic dissection and risk of death. The traditional imaging method that has been used for this measurement has been computed tomography of the chest. With many more children and young adults now being imaged with contrast enhanced magnetic resonance angiography examinations (CE-MRA) , it is useful to know what the range of variability is for the normal aorta on these exams. We present here age and sex specific values for nomograms of the ascending aorta derived from non-gated CE-MRA examinations that are indexed to body surface area.

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