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Abstract #5527

Rigid Motion Correction in MRSI Using Wireless Active Markers

Yibo Zhao1, Chao Ma2, Chang Gao1, Kui Ying1, Jinsong Ouyang2, and Georges El Fakhri2

1Engineering Physics, Tsinghua University, Beijing, People's Republic of China, 2Gordon Center for Medical Imaging, Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States

For brain imaging, even with head restraints, maximum translations in the range of 5-10 mm and rotations of 1-4 degrees are sometimes observed. The rigid body motion of the subject during MRSI acquisition can degrade both the spatial resolution and spectral quality. In this work, we developed a wireless active marker based method to track and correct motion in MRSI.

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