Fig. 1
From: Dexamethasone suppression for 18F-FDG PET/CT to localize ACTH-secreting pituitary tumors
Images of ROI for pituitary adenoma on18F-FDG PET scan
Example of ROI definition in pituitary adenomas of 18F-FDG PET scan of the patients with CD. We draw the fixed circular ROI with a 3-mm diameter for pituitary adenomas (red circle) and normal pituitary gland (green circle)
ROI, Reason of interest; 18F-FDG PET, 18Â F-fluorodeoxyglucose positron emission tomography; CD, Cushing disease