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9 March 2011Developments of thrombosis detection algorithm using the contrast enhanced CT images
In the diagnosis of thrombosis with no specific clinic symptoms, diagnostic imaging plays a greater role. Particularly,
contrast Enhanced CT is low invasive diagnostics, and the thrombus in the pulmonary artery can be detected as a low
density without the contrast effect. Moreover, because describing the change of concentration in lung field and the
decline in lung blood vessel shadow is also possible, it is indispensable to diagnose of thrombosis. As the image
diagnosis support, it is necessary to classify the pulmonary artery and vein that relate to the thrombosis, and to analyze
the lung blood vessel quantitatively. The technique for detecting the thrombosis by detecting the position of the thrombus
has been proposed so far. In this study, it aims to focusing on the dilation of the main pulmonary artery and to detect the
thrombosis. The effectiveness of the method is shown by measuring the pulmonary trunk diameter by using the extracted
pulmonary artery from contrast Enhanced CT through semi-automated method, and comparing it with a normal case.