Meeting Banner
Abstract #3478

Eight-channel ICE-decoupled monopole RF array for ultrahigh field human head MR imaging

Xinqiang Yan 1,2 , Long Wei 2 , Rong Xue 1 , and Xiaoliang Zhang 3

1 State Key Laboratory of Brain and Cognitive Science, Beijing MRI Center for Brain Research, Institute of Biophysics, Chinese Academy of Sciences, Beijing, Beijing, China, 2 Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, Beijing, China, 3 Department of Radiology and Biomedical Imaging, University of California San Francisco and UCSF/UC Berkeley Joint Graduate Group in Bioengineering, San Francisco, California, United States

Traditional decoupling methods face technical challenges in designing monopole arrays. In this study, we investigate the possibility of using the induced current elimination (ICE) decoupling for cylindrical shaped monopole arrays. To evaluate the method, an eight-channel transceiver monopole array, suitable for human head imaging at 7T, with the ICE decoupling method was built and comparatively investigated. Studies demonstrated that isolation between adjacent monopole elements was improved from -7.1 dB to better than -25 dB by using this method. Compared with the monopole array using no decoupling methods, the ICE-decoupled monopole array had a higher SNR and better parallel imaging ability.

This abstract and the presentation materials are available to members only; a login is required.

Join Here