Fig. 4 | Nature Communications

Fig. 4

From: Evaluation of integrin αvβ6 cystine knot PET tracers to detect cancer and idiopathic pulmonary fibrosis

Fig. 4

[68Ga]NODAGA-R01-MG biodistribution and PET imaging of pancreatic cancer. a Sequential MIP PET images of a 69-year-old female study subject show the biodistribution of the tracer for up to ~1 h after intravenous administration. b PET/CT image of the brain shows focal uptake of the tracer in the pituitary gland. c ROI analysis of the representative patient shown above. The following organs are shown: brain (Br), pituitary gland (Pt), breast (Brs), lower large intestine (LLI), small intestine (SI), stomach (St), upper large intestine (ULI), heart wall (HW), heart contents (HC), kidney (Kd), liver (Lv), lung (Ln), muscle (Ms), red marrow (RM), osteogenic cells (Bn), skin (Sk), spleen (Sp), thymus (Tm), thyroid (Tr), bladder (Bl), and total body (TB). d Coronal and axial PET/CT images (left and center) and volume rendered PET/CT image (top right) acquired from a patient diagnosed with pancreatic cancer. The arrows indicate the location of the tumor. High uptake is observed throughout most of the pancreas including the head (SUVmean ~ 3.1), uncinate process, neck and tail (SUVmean ~ 4.4). Comparatively, the SUVmean = 1.8 ± 0.5 S.D. for normal pancreas (n = 5). e IHC confirms integrin αvβ6 expression in the viable part of the tumor. Red box represents area shown at 14x magnification in image below. Pathology report indicated a large amount of necrosis in the tumor. Scale bars on the unmagnified and 14x images represent 2.5cm and 250 mm, respectively. Source data for panel c are provided in a Source Data file

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