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Abstract #5528

Feasibility Study of Arterial Spin Labeling on a Compact 3T Scanner with High-Performance Gradient System

Yunhong Shu1, Shengzhen Tao1, Marc Lebel2, Ek Tan3, MyungHo In1, Joshua D Trzasko1, Erin Gray1, Thomas Foo3, John Huston III1, and Matt A Bernstein1

1Radiology, Mayo Clinic, Rochester, MN, United States, 2GE healthcare, Waukesha, WI, United States, 3GE Global Research, Niskayuna, NY, United States

Our study shows that pCASL based on a 3D segmented fast spin-echo spiral sequence can be performed on a compact 3T (C3T) scanner without the need of second RF transmitter. The high performance gradient system on the C3T can reach 80 mT/m magnitude and 700 T/m/s slew rate without peripheral nerve stimulation, which helps to shorten both the TE and spiral readout length. Both the perfusion-weighted images and the cerebral blood flow maps acquired on the C3T have higher spatial resolution and less off-resonant artifacts compares to those acquired on the conventional whole-body system enabled by the high performance gradients.

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