Abstract #1019
Development of a Dedicated Asymmetric Head-only Gradient Coil for High-Performance Brain Imaging with a High PNS Threshold
Jean-Baptiste Mathieu 1 , Seung-Kyun Lee 1 , Dominic Graziani 1 , Jian Lin 2 , Eric Budesheim 1 , Joseph E. Piel 1 , Naveen Thiagarajan 1 , Christopher J. Hardy 1 , John F. Schenck 1 , Ek Tsoon Tan 1 , Eric Fiveland 1 , Keith Park 1 , Yihe Hua 2 , Matt 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 high-performance, highly-accessible head-only gradient
coil with an asymmetrically located, 26 cm field of view
was built and tested. The coil was force- and
torque-balanced, and can dissipate 25 kW of power on all
axes with a standard 3T scanner systems cabinet. The
coil was tested inside a conventional, 70-cm bore,
whole-body 3T magnet for image quality and patient
comfort assessment. Initial results showed high-quality
brain images with all three gradients at 80 mT/m and 500
T/m/s without significant peripheral nerve stimulation.
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