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Abstract #5356

Multi-Echo EPI improves olfaction-related brain activation

Sonja Blankenagel1,2, Ana Beatriz Solana3, Brice Fernandez4, Christoph Hofstetter5, Andreas Dunkel5, Thomas Hofmann5, Hans Hauner6,7, and Jessica Freiherr1,2

1Fraunhofer Institute for Process Engineering and Packaging (IVV), Freising, Germany, 2Diagnostic and Interventional Neuroradiology, RWTH Aachen University, Aachen, Germany, 3GE Global Research, Munich, Germany, 4GE Healthcare, Orsay, France, 5Food Chemistry and Molecular Sensory Science, Technical University of Munich, Freising, Germany, 6ZIEL Institute for Food and Health, Clinical Nutritional Medicine, Technical University of Munich, Munich, Germany, 7Institute of Nutritional Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany

Multi‑echo planar imaging (MEPI) was explored regarding its ability to overcome the limitations of conventional EPI imaging in studies related to olfaction. MEPI offers great sensibility even in brain regions, which are affected by susceptibility artifacts in EPI imaging. Five subjects were scanned using an event-related olfactory task with both sequences. The subsequent comparison shows that three echoes MEPI has advantages regarding olfaction-related brain activation compared to single echo EPI.

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