Article Figures & Data
Figures
- fig 1.
Comparison of FDG images obtained from a healthy volunteer using dedicated ring-detector PET (dr-PET) (upper panel) and a dual-head coincidence gamma camera (DHC) (lower panel). Both sets of images clearly show brain FDG distribution, but the contrast with DHC was lower than that with dr-PET. FDG uptake in the frontal lobe was relatively higher with DHC as compared with that of dr-PET
- fig 2.
59-year-old man with Alzheimer-type dementia. Dedicated ring-detector PET (dr-PET) images (upper panel) show reduced uptake in both temporoparieto-occipital regions with no other sites of reduced uptake. Dual-head coincidence gamma camera images (lower panel) show reduced uptake in bilateral temporoparieto-occipital regions as well as the dr-PET images do
- fig 3.
71-year-old man with post-traumatic epilepsy. Dedicated ring-detector PET images (upper panel) show multiple lesions of increased FDG accumulation in the right cerebral cortices and basal ganglia. Dual-head coincidence gamma camera images (lower panel) also show multiple lesions of increased FDG accumulation
- fig 4.
Comparison of FDG uptake ratios between dual-head coincidence gamma camera (DHC) imaging and dedicated ring-detector PET (dr-PET) in 252 regions of 21 subjects. The cerebrum/cerebellum ratio in DHC imaging revealed a close relationship with that of dr-PET.
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