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Abstract #3365

Optical prospective motion correction enables improved quantitative susceptibility mapping (QSM) of the brain at 7T

Phillip DiGiacomo1, Mackenzie Carlson1, Julian Maclaren1, Murat Aksoy1, Yi Wang2, Pascal Spincemaille2, Brian Burns3, Roland Bammer1, Brian Rutt1, and Michael Zeineh1
1Stanford University, Stanford, CA, United States, 2Cornell University, Ithaca, NY, United States, 3GE Healthcare, San Francisco, CA, United States

Recent literature has shown the potential of high‐resolution quantitative susceptibility mapping (QSM) with ultra‐high field (7T) MRI for investigating the magnetostatic properties of brain structures and disease pathology. Higher spatial resolutions, however, require longer scans resulting in a higher likelihood of subject movement. Here, we apply a novel prospective real-time optical motion tracking and correction system using a camera integrated between the Tx and Rx coils of a commercial 7T head coil to demonstrate the feasibility of acquiring high-resolution R2* and QSM images robust to subject motion.

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