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Abstract #3254

Optimization of Phase Map for Simultaneous Dual-frequency MR-based Conductivity Imaging

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

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

Multi-frequency spectra of electrical conductivity can provide new information for the physiological and pathological status of biological tissues. Recent simultaneous dual-frequency conductivity imaging by the combination of MREIT and MREPT can provide the different kind of internal conductivity distributions at low frequency (below 1 kHz) induced by externally injected currents and at the Larmor frequency related to the strength of the magnetic field, respectively. Despite of the potential to describe the membrane properties and spectral information, MREPT and MREIT techniques still suffer from the inherent weak signals and noise amplification by the differentiation of the measured phase data.

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