A technique by which temperature patterns on the surface of the skin are recorded in the form of an image. Thermography provides clues to the presence of diseases and abnormalities that alter the temperature of the skin, such as problems of the circulation, inflammation, and tumours. There are 2 types of thermography. In one, a camera or scanner picks up infrared radiation naturally emitted from the skin. In the other, sheets of temperature-sensitive liquid crystals are applied to the skin; they change colour in response to changes in temperature.
Thermography |
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