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FIGURE 7. 18F-FDG PET/CT performed on patient with active Crohn's disease. Both transaxial sections (A) and coronal sections (B) show focally increased tracer uptake in region easily identified on CT images as section of small bowel (with increased thickness of intestinal wall), clearly distinct from tracer accumulation in urinary excretory routes. Standardized uptake value of small-bowel segment with highest radioactivity accumulation was 10.4 in this patient. (Courtesy of Dr. Paola A. Erba, Regional Center of Nuclear Medicine, University of Pisa Medical School, Pisa, Italy.)
