Abstract #1494

A 48-Channel ex vivo Brain Array Coil for Diffusion-Weighted MRI at 3T

Alina Scholz¹, Markus May¹, Robin Etzel¹, Mirsad Mahmutovic¹, Nicolas Kutscha¹, Lawrence L Wald², Anastasia Yendiki², and Boris Keil¹

¹Institute of Medical Physics and Radiation Protection, Mittelhessen University of Applied Sciences, Giessen, Germany, ²A.A. Martinos Center for Biomedical Imaging, Dept of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA, Boston, MA, United States

In diffusion weighted MRI in vivo spatial and angular resolution is often limited to the macroscale regime, due to the maximum examination time that is appropriate for human subjects. Ex-vivo DWI of fixed tissue can overcome this limitation by providing large acquisition times. Therefore, a 48-channel ex-vivo brain array receive coil was developed to be used with the 3T Connectome diffusion scanner. The coil was characterized with both bench and image metrics and compared to a 64ch whole head coil. The size-optimized 48-channel array coil provides increased reception sensitivity and is well-suited for high resolution ex-vivo MRI studies.

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