Abstract #0176

A 128-Channel head coil array for Cortical Imaging at 7 Tesla

Bernhard Gruber^1,2, Jason P. Stockmann¹, Azma Mareyam¹, Boris Keil³, Anpreet Ghotra³, David A. Feinberg⁴, and Lawrence L. Wald¹

¹Department of Radiology, A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States, ²High Field MR Center, Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria, ³Department of Life Science Engineering, Institute of Medical Physics and Radiation Protection, Mittelhessen University of Applied Science, Giessen, Germany, ⁴Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA, United States

A 128-channel receive array for cortical brain imaging at 7T was simulated and constructed. The tight-fitting brain-only coil was designed for use with a recently constructed head gradient system (Gmax = 200 mT/m and Smax = 900mT/m/s) for use with either a single channel birdcage Tx or a 24-channel pTx coil. The goal was to maximize cortical SNR and achieve the high acceleration needed for single-shot EPI based fMRI at high sub-millimeter isotropic resolution.

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