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Abstract #3885

7T Imaging of the Head &Neck Region: B0 &B1+ Challenges

Johanna Jacoba Bluemink1, Anna Andreychenko1, Astrid L. H. M. W. van Lier1, Marielle Phillippens1, Jan J. W. Lagendijk1, Peter R. Luijten2, Cornelis A. T. van Den Berg1

1Radiotherapy, University Medical Center Utrecht, Utrecht, Netherlands; 2Radiology, University Medical Center Utrecht, Utrecht, Netherlands

The head and neck (H&N) region is challenging to image due to air cavities that distort the B0 field. At 7T better a SNR can be obtained, but susceptibility effects are increased and for the H&N region no commercial 7T transmit coils are available. Two setups, a volume T/R coil placed near the neck and a traveling wave setup are compared in transmit performance. With the volume T/R coil sufficient B1+ can be obtained for SE in the nasopharynx and the oropharynx. The traveling wave setup can cover a larger volume, but the maximum B1+ obtained was only 3T.