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Comparative analysis of image characteristics of CTA and TOF-MRA (A) CTA images of carotid artery and plaque, and yellow and magenta circle showed the plaque area and carotid artery area separately (B) MR images of carotid artery and plaque. (C) The density of carotid artery and plaque density by the two methods. (D) The statistical difference of carotid artery and plaque density between the two methods.
