In vivo MREIT conductivity imaging of canine brain to evaluate ischemia and abscess

MREIT has reached the stage of in vivo animal and human imaging experiments. To support its clinical significance, we should demonstrate that the conductivity image provides meaningful diagnostic information that is not available from other imaging modalities. To investigate any change of electrical conductivity due to brain diseases of ischemia and abscess, we scanned an animal with such a regional brain disease along with a separate prior scan of the same animal having no disease model. Conductivity images shown in this study indicate that time-course variation of conductivity contrast between normal and abnormal regions are distinguishable in a different way compared with conventional MR image techniques.