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Abstract #1951

Conductivity Measurements at 21.1 T using MR Electrical Property Tomography

Ghoncheh Amouzandeh1,2, Jens T. Rosenberg1, and Samuel Colles Grant1,3

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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