Abstract #5063

Low-Loss Switches for Multinuclear MRI/S Using Stimuli-Responsive Polymer Materials

Edith Valle¹, Seelay Tasmim², Mary P. McDougall^1,2, and Taylor H. Ware^2,3

¹Electrical and Computer Engineering, Texas A&M University, College Station, TX, United States, ²Biomedical Engineering, Texas A&M University, College Station, TX, United States, ³Materials Science & Engineering, Texas A&M University, College Station, TX, United States

Synopsis

Keywords: Non-Array RF Coils, Antennas & Waveguides, Hybrid & Novel Systems TechnologyThe development of highly sensitive multinuclear RF coils for MRI/S is challenging because most current multi-tuning techniques involve the addition of lossy components. Although it is possible to optimize for a particular nucleus, usually non-¹H, multinuclear coils have lower SNR than their single-tuned counterparts. We investigate a novel switching system that uses stimuli-responsive materials. The coils with the proposed switching method had a decrease of <26% in Q when compared to single-tuned coils. As a result, we demonstrated a promising alternative to traditional switching techniques.

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