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Home > Issues > SearchAttenuation Effect of PET Images with and Without the Magnetic Resonance Breast Coil using Various MR Attenuation Correction Sequences
Journal of Magnetics, Volume 23, Number 3, 30 Sep 2018, Pages 375-380
Chan Rok Park (Department of Biomedical Science, Korea University), Youngjin Lee (Department of Radiological Science, Gachon University), Hyungjin Yang * 
(Department of Biomedical Science, Korea University)
(Department of Biomedical Science, Korea University)
Abstract
The present study aims to confirm the attenuation correction (AC) in positron emission tomography (PET) images using various magnetic resonance (MR) sequences with and without the MR breast radiofrequency
(RF) coil, and thus to evaluate the attenuation effect of the MR breast RF coil. To that purpose, we reconstructed non-attenuated PET data using the MR ACDixon-CAIPI, MR ACUTE, and MR ACDixon-GRAPPA sequences. The results indicated that the signal loss of the PET image with the MR breast RF coil was the lowest when the MR ACDixon-GRAPPA sequence was applied. In conclusion, the MR ACDixon-GRAPPA sequence maintained PET image quality when using the MR breast RF coil during PET/MR scanning.
(RF) coil, and thus to evaluate the attenuation effect of the MR breast RF coil. To that purpose, we reconstructed non-attenuated PET data using the MR ACDixon-CAIPI, MR ACUTE, and MR ACDixon-GRAPPA sequences. The results indicated that the signal loss of the PET image with the MR breast RF coil was the lowest when the MR ACDixon-GRAPPA sequence was applied. In conclusion, the MR ACDixon-GRAPPA sequence maintained PET image quality when using the MR breast RF coil during PET/MR scanning.
Keywords: PET/MR; MR-based attenuation correction sequences; Breast PET/MR RF coil
DOI: https://doi.org/10.4283/JMAG.2018.23.3.375
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