Fig. 3
a Functional images of 15O-labelled gases PET using 6-min data during steady-state acquisition (coronal slices of PET/CT fusion). TBF and TMRO2 images showed marginal dominant distribution (arrow). OEF images showed partial elevation in the area close to the center (arrow head) and TBV images showed a high spot in the marginal zone of the tumor (arrow head). b Axial, c coronal, and d sagittal images of 18F-FMISO PET (rainbow color scale), TBF PET (fire color scale), and co-registered fusion images. The upper figures are tumors in the right side and the lower figures are tumors in the left side