Kay Nehrke1,
Maarten J. Versluis2, Andrew Webb2, Peter Brnert1,
2
1Philips
Research Laboratory, Hamburg, Germany; 2Leiden University Medical
Center, Leiden, Netherlands
A new acquisition scheme based on virtual stimulated echoes has been developed for the DREAM B1+ mapping approach, which allows compensation of both, T2 and T2*, effects. The new option has been studied on phantoms and in vivo at 7T. For the phantom experiments, rubber phantoms were employed, showing that the sequence allows accurate B1+ mapping for a short T2 in the order of a millisecond. For the in vivo experiments, B1+ maps of the brain were acquired, showing that the contrast between brain tissue and CSF is reduced for the new sequence option.