Abstract #3329

In Vivo Aortic MR Elastography using Free-Breathing and Single-Breath-Hold SE-EPI: Inter-Scanner Reproducibility at 1.5T and 3T

Huiming Dong^1,2, Richard D White^1,3, and Arunark Kolipaka^1,2,3

¹Department of Radiology, The Ohio State University Wexner Medical Center, Columbus, OH, United States, ²Department of Biomedical Engineering, The Ohio State University, Columbus, OH, United States, ³Internal Medicine-Division of Cardiology, The Ohio State University Wexner Medical Center, Columbus, OH, United States

In vivo MR elastography (MRE) allows non-invasive estimation of aortic stiffness. Recently, the feasibility of multi-slice free-breathing (FB) spin-echo echo-planar imaging (SE-EPI) aortic MRE was investigated. In this study, a single breath-hold (SBH) SE-EPI aortic MRE protocol was proposed and compared to FB SE-EPI aortic MRE. Moreover, in vivo FB and SBH SE-EPI aortic MRE were studied using both1.5T and 3T scanners. The main aim was to assess inter-scanner reproducibilities of FB and SBH SE-EPI aortic MRE.

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