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Distinguish GIT FDG Uptake Using Water PET/CT Scans
- 1. H 2 WHOA - 6 to 8 glasses of water an hour How water can distinguish physiological from pathological uptake in the GIT on PET/CT scans Melanie Crowther
- 12. Same patient we saw earlier with the apple core lesion. 6 months later and post chemo-radiation
- 22. 53 yo male metastatic melanoma The foci of FDG uptake in the splenic flexure does not move, but becomes more FDG avid
- 24. 60yo female diagnosed with NHL The tubular area of increased radiotracer activity in the right iliac fossa can only be determined as appearing in the small bowel on the fused CT images (sp. sagittal & axial views
- 26. Same patient following 8 glasses of water, 104 mins after the first PET scan
Hinweis der Redaktion
- SW - 84yo F follicular lymphoma of the stomach, post 6 cycles Mabthera. Remission
- KS 75yo M
- It has an inhibitory effect on smooth muscle with reduction in gastric and intestinal motility
- ML - 67yo F ca gastric, recently commenced chemotherapy ?resectable disease
- MD - 75yo M with renal artery stenosis. lesion in the right colon detected on a recent CT scan. The diffuse gastric uptake on the initial scan becomes less intense and extensive on the gastric static with water distention acquisition cf to the intense uptake in the ascending colon (which only gets more avid)
- KS (2)
- Amount of time for water to reach colon = 2-3hrs, and that would be after 60mins uptake+first scan time, so from a practical viewpoint not usually achievable. Better to just perform a delayed static over the region of colonic uptake that is in question.