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Abstract #3305

Anisotropic Conductivity Distribution of Brain using a Combination of DTI and MREIT

Saurav ZK Sajib 1 , Woo Chul Jeong 1 , Ji Eun Kim 1 , Hyung Joong Kim 1 , Oh In Kwon 2 , and Eung Je Woo 1

1 Kyung Hee University, Yongin, Gyeonggi, Korea, 2 Konkuk University, Seoul, Korea

Estimation of brain anisotropic conductivity has a potential in analysis of interactions between electromagnetic fields and biological systems, such as prediction of current pathway in tDCS and DBS. In this study, we reconstruct anisotropic conductivity distribution of canine brain by combing information from the DTI and MREIT imaging. Since the MREIT technique is used for visualizing high-resolution isotropic conductivity at low frequency. Combing the measured water self-diffusion from DTI and z-component of magnetic flux density from MREIT, it is possible to obtain effective-conductivity-to-diffusivity ratio (ECDR) in every voxels which provides precise information for brain anisotropy comparing to global scaling factor.

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