In Vivo Electrical Conductivity Tensor Images of Human Calf using DT-MREIT

DTI has been used as a powerful tool for investigating the anisotropic property of biological tissues. MR-based electrical impedance tomography (MREIT) could visualize the apparent tissue conductivity by measuring the one component of magnetic flux density by the externally injected currents. The diffusivity of water molecule and electrical tissue conductivity depend on the anisotropic orientation of tissue. The effective medium model implies that the diffusion and electrical conductivity tensor eigenvalues are connected through a linear relationship. Combing DTI and MREIT techniques, we propose a new method, DT-MREIT, which provides in vivo anisotropic absolute conductivity tensor images of the human body.

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