Fig. 3

Dynamic ¹⁸F-FDG-PET imaging. Upper panel A Abdominal maximum intensity projection (MIP) images showing the rapid inflow of ¹⁸F-FDG through the vena cava to the heart (h) and kidneys (k) after an ¹⁸F-FDG bolus intravenous injection. Middle panel B Coronal view of the lower abdomen displaying accumulation of tracer in the tumor (encircled with a yellow ROI) throughout the 1-h dynamic scan, quantified as the time-activity curve of the tumor (C) and the image-derived input function quantified from vena cava (insert) (D). ¹⁸F-FDG fluorodeoxyglucose, ROI region of interest, SUV standardized uptake value