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Zusammenfassung:
A 3D snapshot CEST sequence is optimized for contrast originating from hydroxyl groups of glucose molecules. Multi-B1-multi-pH measurements allow fitting of exchange rates of four glucose hydroxyl groups, which are then used to optimize pre-saturation parameters in simulation. The optimal protocol gave highly reproducible signals in 6 healthy volunteers, and showed no contrast when tested in a brain tumor patient. This protocol provides a robust baseline for glucose injection studies.
