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Abstract #4933

Optimization of a Zero Echo Time (ZTE) Sequence at 7T with Phased Array Coils

Douglas A. C. Kelley 1 , Graeme C McKinnon 2 , Laura Sacolick 3 , Daniel B Vigneron 4 , and Sarah J Nelson 4

1 Neuro Apps and Workflow, GE Healthcare, Corte Madera, CA, United States, 2 MR Physics, GE Healthcare, Waukesha, WI, United States, 3 MR, GE Healthcare, Muenchen, Germany, 4 Radiology & Biomedical Imaging, UCSF, San Francisco, CA, United States

A Zero Echo Time (ZTE) sequence compatible with conventional phased array coils was implemented and optimized at 7T for brain imaging with more uniform T1 contrast and high sensitivity while retaining sensitivity to fast relaxing spins. Details of the implementation and optimization are provided along with images from phantoms and normal volunteers. Comparison is provided to a conventional 3D inversion prepared gradient echo imaging sequence of equal scan time. An additional feature of the sequence is that it generates very low levels of acoustic noise.

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