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Abstract #1055

Optimal Motion Encoding Scheme for MR Elastography

Temel Kaya Yasar 1 , Yifei Liu 2 , Dieter Klatt 3 , Richard L Magin 3 , and Thomas J Royston 3

1 Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, NY, United States, 2 Mechanical Engineering Department, University of Illinois at Chicago, Chicago, IL, United States, 3 Biomedical Engineering Department, University of Illinois at Chicago, Chicago, IL, United States

An optimal MR elastography motion encoding scheme applicable to any MRE pulse sequence is introduced in this study along with a new mathematical framework to support this method. An MRE pulse sequence based on this scheme would have at least 33% time efficiency compared to a conventional MRE pulse sequence. This improvement has clinical significance for increasing in the quality of elastograms by reducing the motion artifacts and image misregistration. The method was demonstrated on a phantom and an excellent agreement was observed between the proposed method and a conventional MRE method.

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