Whole-body static emission scanning was obtained 60 min after 18F-FDG administration, using the three-dimensional acquisition mode (3D mode) for 3 min per bed position. The energy window was 350-650 keV. Subsequently, transmission scanning using externally rotating germanium-68 rod sources was performed for attenuation correction. The acquired 3D sinograms were converted into 2D sino-grams using a Fourier rebinding algorithm (FORE), and attenuation-corrected data were reconstructed iteratively using an ordered subset expectation maximization algorithm with 32 subsets and one iteration.
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