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(A). Representative T1weighted image within dynamic scan at the postcontrast phase obtained from a papillary thyroid cancer patient with extrathyroidal extension (36 years, female). Regions of interest (ROIs) were drawn on a tumor (yellow curve line) and on a carotid artery (red circle). (B). Plot of the representative time course of plasma contrast agent (CA) concentration [Cp (t)] extracted from the ROI (red circle) within carotid.
