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Abstract #1780

Multi atlas-based attenuation correction for brain FDG-PET imaging using a TOF-PET/MR scanner– comparison with clinical single atlas- and CT-based attenuation correction

Tetsuro Sekine1,2, Ninon Burgos3, Geoffrey Warnock1, Martin Huellner1, Alfred Buck1, Edwin ter Voert1, M. Jorge Cardoso3, Brian Hutton3, Sebastien Ourselin3, Patrick Veit-Haibach1, and Gaspar Delso4

1University Hospital Zurich, Zurich, Switzerland, 2Nippon Medical School, Tokyo, Japan, 3University College London, London, United Kingdom, 4GE Healthcare, Waukesha, WI, United States

Accurate attenuation correction on PET/MR scanner is challenging. We compared multi-atlas method with clinical single-atlas method. Our study revealed that the error of PET images based on multi-atlas method is reduced from 1.5% to 1.2% compared to the single-atlas method, a 30% improvement.

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