Abstract #1306
Evaluation of ICE and capacitive decoupling methods using in 8-channel loop array coils at 7T
Xinqiang Yan 1,2 , Xiaoliang Zhang 3,4 , Chuangxin Ma 2 , Long Wei 2 , and Rong Xue 1
1
State Key Laboratory of Brain and Cognitive
Science, Beijing MRI Center for Brain Research,
Insititute 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, San Francisco, California,
United States,
4
UCSF/UC
Berkeley Joint Graduate Group in Bioengineering, San
Francisco, California, United States
In this study, two eight-channel transmit/receive
volume-type loop array coils were built for human head
imaging at 7T by using the ICE decoupling method and
capacitive decoupling method, respectively. We have
conducted research on comparison between these arrays in
terms of S-parameter matrix, SNR and parallel imaging
capability. Compared with the capacitively decoupled
array, the ICE-decoupled array has better isolation
between adjacent coil elements, higher SNR at periphery
area and better parallel imaging capability.
Additionally, ICE decoupling method is more robust that
decoupling loops do not need to be retuned for different
loads.
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