Abstract #3118
Magnetic wall decoupling for dipole transceiver array for MR imaging: a feasibility test
Xinqiang Yan 1,2 , Xiaoliang Zhang 3 , Long Wei 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
Dipole antenna arrays have been applied for ultrahigh
field MRI to obtain better SNR gain at the deep area of
human tissues. However, there is no suitable decoupling
methods proposed for dipole coil arrays in MRI. In this
study, we investigated the possibility and performance
of magnetic wall (MW) decoupling technique in dipole
array designs. A two-channel MW decoupled dipole array
was designed, constructed and analyzed experimentally.
Both the bench test and experimental results indicate
that the MW decoupling is a promising solution to
reducing the electromagnetic coupling of dipole arrays,
consequently improving their performance in SNR and
parallel imaging.
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