Abstract #0561

Design and Construction of a Low-Cryogen, Lightweight, High-Performance, Head-only Compact 7T MRI

Thomas K.F. Foo¹, Mark Vermilyea², Minfeng Xu², Anbo Wu², Yihe Hua², Wolfgang Stautner², Ye Bai², Justin Ricci², Doug Kelley³, John III Huston⁴, Yunhong Shu⁴, Matt A Bernstein⁴, Christopher Hess⁵, and Duan Xu⁵

¹GE Global Research, Niskayuna, NY, United States, ²GE Research, Niskayuna, NY, United States, ³GE Healthcare, Fairfax, CA, United States, ⁴Mayo Clinic, Rochester, MN, United States, ⁵University of California - San Francisco, San Francisco, CA, United States

A design for a lightweight, low-cryogen, head-only 7T MRI system was completed with its construction underway. This new 7T system is a dedicated brain scanner with 140 mT/m and 820 T/m/s gradients and weighs about 8 tons with 18 liters of liquid helium. The fringe field is similar to the 5 Gauss limits of a clinical whole-body 3T MRI scanner.

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