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Abstract #1469

Brain activity alteration during the training period of the Hybrid Assistive Limb® (HAL) for chronic spinal cord injuries: a task-based fMRI case report

Kousaku Saotome1,2, Akira Matsushita3,4, Aiki Marushima3, Hiroaki Kawamoto1,5, Hideo Tsurushima1,3, Tomohiko Masumoto6, Masashi Yamazaki7, Akira Matsumura3, and Yoshiyuki Sankai1,5

1Center for Cybernics Reseach, University of Tsukuba, Tsukuba, Japan, 2Graduate School of Comprehensive Human Science Majors of Medical Sciences, University of Tsukuba, Tsukuba, Japan, 3Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan, 4Department of Neurosurgery, Ibaraki Prefectural University of Health Sciences, Inashiki, Japan, 5Faculty of Engineering, Information and Systems, University of Tsukuba, Tsukuba, Japan, 6Department of Radiology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan, 7Department of Orthopaedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan

We previously developed the novel brain phantom showing image contrast and construction similar to those of in vivo MRI. This phantom has the potential to quantitatively assess the capability of the motion-corrected PROPELLER technique, which has been never approached. In the current study, we investigated the rotational frequency dependencies of the different two motion-corrected PROPELLER techniques by using our brain phantom. Our findings allow to quantitatively assess the capability of the Motion-Correction in PROPELLER.

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