Abstract #1808
Hybrid monopole/loop coil array for human head parallel MR imaging at 7T
Xinqiang Yan 1,2 , Xiaoliang Zhang 3 , Long Wei 2 , Yuqian Liu 2 , and Rong Xue 1
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
In this study, a hybrid monopole/loop technique which
could combine the advantages of loop arrays and monopole
arrays was proposed. To investigate this technique, a
hybrid transceiver coil array containing 4 monopole
channels and 4 loop channels was developed for human
head imaging at 7T. Compared with the monopole-only and
loop-only arrays, the proposed hybrid array has higher
SNR and better parallel imaging performance. With
increased independent transmit channels, the hybrid
array promises additional degrees of freedom for the RF
shimming and parallel transmission (pTx), which might be
advantageous to provide more homogeneous transmit
fields.
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