Deep vein thrombosis: Preclinical diagnosis by thermography

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Abstract
A raised temperature and delayed cooling on exposure of the thrombosed limb is an early sign of deep vein thrombosis (DVT). This sign can be detected by using thermography when not apparent clinically. The grey tone thermograph has a characteristic appearance in DVT. Of 53 cases of DVT demonstrated by phlebography, 51 were previously suspected on thermographic examination. The method is non-invasive and can be repeated at will.