Abstract #1588

Development of Microstrip Coils Integrated with High Dielectric Constant (HDC) Material to Improve B1 Field and Performance of 1H MR imaging at 7T

Soo Han Soon^1,2, Matt Waks¹, Xiao-Hong Zhu¹, Hannes M. Wiesner¹, Navid P. Gandji³, Qing X. Yang³, Michael T. Lanagan⁴, and Wei Chen¹

¹CMRR, Department of Radiology, University of Minnesota, Minneapolis, MN, United States, ²Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States, ³CNMRR, Department of Neurosurgery, Penn State University, Hershey, PA, United States, ⁴Department of Engineering, Penn State University, Hershey, PA, United States

The development of ultra-high-field (UHF) magnetic resonance imaging (MRI) and spectroscopy imaging (MRSI) technologies improves sensitivity and spatial resolution for biomedical and clinical applications. However, the limited inherent signal-to-noise ratio (SNR) is still challenging, especially for pushing spatiotemporal resolution even at UHF. Previous studies have shown that high dielectric constant (HDC) materials could provide a new RF engineering solution for the challenge. In this study, we introduce a novel microstrip transmission line (MTL) transceiver array that uses HDC material as substrate, and significantly improves the RF transmission (B₁⁺) and reception (B₁^-) fields and SNR for ¹H imaging application at 7T.

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