Abstract #0397

Optimized ICE-decoupled Monopole Array for Human Head Imaging at 7T

Xinqiang Yan¹ and Xiaoliang Zhang²

¹Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China, People's Republic of, ²Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco, CA, United States

Induced current elimination (ICE) method has proved to be a useful approach in decoupling radiative monopole and dipole arrays. In this study, we aim to investigate the effect of ICE decoupling elements and their position to the B₁ fields. The MR imaging and simulation results show that an optimized arrangement of ICE decoupling elements can be found to minimize the perturbation of decoupling elements. Compared with the non-optimized ICE decoupled monopole array, the optimized array has more homogeneous transmit field and has no dark spots or signal cancellations in the MR images.

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