Optimization of an 8-channel receive-only surface array for whole brain MRI of marmosets
Daniel Papoti 1 , Cecil Chern-Chyi Yen 1 , Pascal Sati 1 , Joseph Robert Guy 1 , Daniel S Reich 1 , and Afonso C. Silva 1
NINDS, National Institutes of Health,
Bethesda, Maryland, United States
In this work we describe the development and comparison
of three different 8-channel receive-only arrays built
to provide whole brain MRI coverage of marmosets with
high sensitivity. Among all coils built, the design
based on a central elliptical element partially
overlapped with 7 loops showed excellent coverage with
high sensitivity throughout the whole brain. A gain up
to 60% in SNR in the frontal cortex, 40% in the
occipital cortex, and 20% in the center of the brain was
achieved when compared to the other two geometries.
High-resolution brain images obtained from an autoimmune
encephalomyelitis animal clearly show white matter
lesions in both T1- and T2-weighted images.
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