Abstract #4233

RF Field Enhancement with Ultrahigh Dielectric Constant Material for Micro Imaging at 7T

Mohan Jayatilake¹, Christopher T Sica¹, Dhevin Karunanayaka¹, Anupa Ekanayaka², Biyar Ahmed¹, Rommy Elyan¹, and Prasanna Karunanayaka¹

¹Pennsylvania State University College of Medicine, Hershey, PA, United States, ²Grodno State medical University, Grodno, Belarus

Synopsis

Keywords: High-Field MRI, High-Field MRI

In this study, we investigated the effects of ultra-high dielectric constant (uHDC) material for reducing noise and enhancing the B1 efficiency at 300 MHz for 1H nuclear applications at 7T. Using electromagnetic field simulations [CST Studio (2020) software] and imaging experiments, we estimated B1+ efficiency maps for a phantom mouse brain with and without uHDC material. Our results show significant enhancement of B1+ efficiency and Signal-to-Noise ratio (SNR) in the presence of the uHDC material.

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