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Abstract #3718

Designing a Hyperbolic Secant Excitation Pulse to Reduce Signal Dropout in 2D Gradient Echo Imaging at 7T

Stephen James Wastling 1 , Mark Symms 2 , Mauro Costagli 3,4 , Laura Biagi 3,4 , Mirco Cosottini 3,5 , Gareth John Barker 1 , and Michela Tosetti 3,4

1 Department of Neuroimaging, King's College London, London, United Kingdom, 2 GE Healthcare, Pisa, Italy, 3 Imago7, Pisa, Italy, 4 IRCCS Stella Maris, Pisa, Italy, 5 Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy

A method of reducing signal drop-out in Gradient Echo imaging using a Hyperbolic Secant pulse was developed and tested at 7T. The coronal images showed reduced signal drop-out in the brain-stem, inferior temporal lobe, and the cerebellum, producing images of superior visual quality in human subjects.

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