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FDG PET/CT study in another patient with a large liver metastasis secondary to GIST following selective internal radiotherapy treatment (SIRT) therapy. The fused FDG PET/CT images show a low FDG uptake in the hypodense lesion (D). The parametric images, however, demonstrate a low distribution volume in the intercept images (B) but a high signal in the slope images (A), indicating a high phosphorylation of the tracer. (C) Fused images of slope and intercept.
