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Abstract #0764

A 64-Channel 7T array coil for accelerated brain MRI

Azma Mareyam1, John E. Kirsch1,2, Yulin Chang3, Gunjan Madan3, and Lawrence L. Wald1,2
1Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States, 2Harvard Medical School, Boston, MA, United States, 3Siemens Medical Solutions USA, Boston, MA, United States

We construct and test a prototype 64-channel brain array coil for 7T and compare it to a 32-channel coil of similar design. Coil characteristics like signal to noise ratio, noise correlation matrix, and noise amplification (G-factor) for parallel imaging are described as well as and a comparison of the B1+ maps to assess birdcage coil efficiency and homogeneity. The coil was designed on a split-half former with a sliding top half to facilitate patient entry and utilizes a sliding birdcage coil for transmit

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