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Abstract #0936

Spiral Imaging on a Compact 3T Scanner with High Performance Gradients

Shengzhen Tao1, Yunhong Shu1, Joshua Trzasko1, Myung-Ho In1, Erin Gray1, John Huston III1, and Matt Bernstein1

1Radiology, Mayo Clinic, Rochester, MN, United States

Recently, a low-cryogen, compact 3T MRI system optimized for brain, extremity and infant imaging was developed. The system is equipped with a high slew rate gradient capable of 80 mT/m maximum gradient amplitude and 700 T/m/s slew rate. Due to its reduced imaging volume (26-cm diameter-spherical-volume), the high gradient amplitude and slew rate can be achieved simultaneously on this system with substantially less peripheral nerve stimulation. Here, we investigate the benefit of performing spiral imaging using high gradient performance available on this system. We demonstrated that the high slew-rate can significantly reduce spiral readout time and therefore reduce off-resonance-induced blurring.

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