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Abstract #1455

3DREAM A Three-Dimensional Variant of the DREAM Sequence

Daniel Brenner 1 , Desmond H. Y. Tse 2 , Eberhard D. Pracht 1 , Thorsten Feiweier 3 , Rdiger Stirnberg 1 , and Tony Stcker 1

1 German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany, 2 INM-4, Research Centre Jlich GmbH, Jlich, Germany, 3 Siemens AG, Healthcare Sector, Erlangen, Germany

A 3D variant of the DREAM sequence, with a spiral phase encode view ordering, is utilized for B1 mapping at 7T. Together with short non-selective preparation and imaging RF pulses this enables whole volume B1 mapping of the human head in 15s or even a single shot - which only lasts 3s at negligible SAR levels (1%). Good agreement is found with a reference AFI dataset with degraded quality in a low tip angle regime due to the low SNR of the STE* image.

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