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Abstract #5613

Brain Tumor and Prostate EPI MR Elastography Distortion Reduction and Correction Using rFOV and PSF-EPI Techniques

Yi Sui1, Myung-Ho In1, Kay M. Pepin1, Kevin J. Glaser1, Erin M. Gray1, Phillip J. Rossman1, Matt A. Bernstein1, Richard L. Ehman1, and John Huston III1

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

Image distortion is a common problem in EPI-based MR elastography (MRE) acquisitions, especially in regions with high susceptibility, including regions adjacent to air-tissue interfaces, such as the paranasal sinuses and the prostate. In this study, we explored a reduced-field-of-view (rFOV) technique and a point-spread-function (PSF) mapping EPI correction method to reduce or correct the distortions in EPI MRE images of brain tumors and the prostate.

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