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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