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Abstract #2088

Noninvasive Analysis of Brain Shift Transformation in Closed Cranium using MR Images Acquired in Different Body Positions

Etsuko Kumamoto1,2, Shigeto Hayashi3, Kento Matsuda2, Katsusuke Kyotani4, Takashi Nishino5, Tomoaki Nakai6, and Eiji Kohmura6

1Information Science and Technology Center, Kobe University, Kobe, Japan, 2Graduate School of System Informatics, Kobe University, Kobe, Japan, 3Department of Neurosurgery, Hyogo Emergency Medical Center, Kobe Red Cross Hospital, Kobe, Japan, 4Department of Radiology, Kobe University, Kobe, Japan, 5Department of Chemical Science and Engineering Faculty of Engineering, Kobe University, Kobe, Japan, 6Department of Neurosurgery, Kobe University, Kobe, Japan

Although the transformation of brain tissue during craniotomy is a well-known phenomenon, there has been a lack of methodological analysis related to physiological brain shift in the closed cranium. In this study, we analyzed brain shift and transformation using MRI volume data acquired in different body positions. The volume data were divided into voxels. Each voxel of the prone or the right volume was registered using voxels of the supine or the left volume as templates, and movement and rotation of each voxel were recorded. Experimental result shows that the displacement in the depth of the brain tended to be conspicuous and rigid compared to the displacement of the brain surface.

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