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Identification of suspicious PE regions based on the thresholding of the partitioned artery regions in a subject. (a)-(b) CT images at different window/level settings, (c) results after thresholding operation, (d) suspicious PE regions (green) after constrained morphological operations, and (e)-(l) local enlargement of the images as indicated by arrow A and B in (a)-(b) and the corresponding results.
