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Abstract #1931

Multi-Shelled Q-Ball Imaging Without Assuming Inversion Symmetry

Eizou Umezawa1, Masayuki Yamada1, Chiaki Tsunetomi1, Hirofumi Anno1

1Graduate School of Health Sciences, Fujita Health University, Toyoake, Aichi, Japan

In diffusion MR analyses, the inversion symmetry of the water molecule diffusion is often assumed: the property of diffusion into a direction is identical to that into the opposite direction. Recently, a novel method, multi-shelled q-ball imaging (MS-QBI), has been proposed. In this study, we propose a method to detect the inversion asymmetry of diffusion with MS-QBI. We also perform the numerical simulation of detecting the asymmetry and examine the ability. MS-QBI will be able to detect the inversion asymmetry if the asymmetry is large enough. It is possible that MS-QBI can detect the inversion asymmetry in the case of the small voxel size realized by a high sensitivity coil system such as the cryoprobe.