PET/MRI shows high accuracy of fused images by simultaneously acquired PET and MR images. We can obtain spatially and temporally consistent information on metabolic and anatomic information from PET/MRI. We evaluated each quantitative value in 12 patients with extra-axial tumor in this study. We manually placed the same regions of interest (ROIs) of the tumor on FDG-PET, CBF map and ADC map, and performed ROI analysis of SUV, TBF (tumor blood flow) and ADC. There were correlations between SUV and TBF, and between SUV and ADC among patients with TBF less than 110 ml/100g/min.
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