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Representative dataset showing the supraclavicular BAT on MR and on PET reconstructed images with decreasing activity. a Axial MRI “water” image. b–h Axial TOF PET images reconstructed with 35%, 30%, 25%, 20%, 15%, 10%, and 5% of the original counts, thereby simulating corresponding lower doses. Blue arrows indicate supraclavicular BAT, and red arrows indicate increasing artifacts with decreasing activity
