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Abstract #2880

Improvements in Cardiac MR Elastography Using Reduced FOV Techniques

Yi Sui1, Arvin Forghanian-Arani1, Joshua D. Trzasko1, Shiv Poigai Arunachalam1, Kevin J. Glaser1, David S. Lake1, Kiaran P. McGee1, Armando Manduca1, Phillip J. Rossman1, Richard L. Ehman1, and Philip A. Araoz1

1Radiology, Mayo Clinic, Rochester, MN, United States

Single-shot spin-echo EPI (SS-SE-EPI) has been utilized for cardiac MR Elastography (cMRE) due to its fast imaging speed and insensitivity to cardiac motion. However, the long echo train in SS-EPI makes it vulnerable to image distortion, which can be prominent in cMRE due to the large susceptibility gradient present at the heart-lung interface. In this study, a reduced phase FOV (rFOV) technique combined with a 2D selective excitation has been implemented in the cMRE. And the results showed that the MRE image quality was improved with reduced image distortions and higher SNR.

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