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 Saotome^1,2, Akira Matsushita^3,4, Aiki Marushima³, Hiroaki Kawamoto^1,5, Hideo Tsurushima^1,3, Tomohiko Masumoto⁶, Masashi Yamazaki⁷, Akira Matsumura³, and Yoshiyuki Sankai^1,5

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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