Abstract #0310
Brain imaging with a Dedicated Asymmetric Head-only Gradient Coil without Peripheral Nerve Stimulation at 500 T/m/s
Seung-Kyun Lee 1 , Jean-Baptiste Mathieu 1 , Joseph E Piel 1 , Christopher J Hardy 1 , John F Schenck 1 , Ek Tsoon Tan 1 , Eric Budesheim 1 , Eric Fiveland 1 , Keith Park 1 , Kenneth Rohling 1 , Yihe Hua 2 , Jian Lin 2 , Matthew A Bernstein 3 , John Huston III 3 , Yunhong Shu 3 , and Thomas K-F Foo 1
1
GE Global Research, Niskayuna, NY, United
States,
2
GE
Global Research, China Technology Center, Shanghai,
China,
3
Mayo
Clinic, Rochester, MN, United States
A dedicated head-only gradient set with asymmetric
transverse coils and a hollow-conductor z coil was built
and tested. The coil incorporated force-balanced,
torque-balanced, and eddy current-controlled design. The
coil was tested inside a conventional whole-body 3T
magnet to assess image quality and peripheral nerve
stimulation (PNS). The gradient was integrated with a
custom-built birdcage transmit/receive coil and a
32-channel receiver array for in-vivo imaging. Initial
results demonstrated high quality brain images with
transverse gradients at 80 mT/m and 500 T/m/s
(simultaneously) without PNS.
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