THE DETECTION OF STENOSIS OR OCCLUSION OF THE INTERNAL CAROTID ARTERY BY FACIAL THERMOGRAPHY

Facial thermography detects occlusion or severe stenosis of the internal carotid artery in approximately 80% of patients by demonstrating a cool patch on the ipsilateral part of the forehead or warm spots in areas of collateral circulation. The technique provides a painless and harmless method of assessing carotid blood flow before or after endarterectomy, or of screening an apparently normal population.