Abstract #1951

Conductivity Measurements at 21.1 T using MR Electrical Property Tomography

Ghoncheh Amouzandeh^1,2, Jens T. Rosenberg¹, and Samuel Colles Grant^1,3

¹Center for Interdiscplinary Magnetic Resonance, Florida State University, Tallahassee, FL, United States, ²Physics, Florida State University, Tallahassee, FL, United States, ³Chemical & Biomedical Engineering, Florida State University, Tallahassee, FL, United States

This study explores the opportunity of using ultra-high field (21.1 T) for producing electrical conductivity maps. Phantoms with known NaCl concentrations were used to compare conductivity maps generated by phase-based MREPT with actual values measured at 900 MHz with a dielectric probe. Phase-based MREPT also was evaluated for in vivo ischemic brain using an MCAO rat model. Increased conductivity values were noted in the stroked region of the rat brain.

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