Word: thermogram
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Dates: during 1960-1969
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...subject in any way. Instead, it scans the body surface for six to twelve minutes to register the invisible infra-red rays emitted by the body itself. Where blood concentrates close to the surface-in veins, infections or abnormally rapid growths-the skin runs a higher temperature and the thermogram shows a light spot. Where there are areas of low metabolism-such as hair and scars or inactive growths close to the surface-the bodv temperature is slightly lower, and -',e thermogram is proportionately darker. Routine thermometer readings might show a fever, but they would not pinpoint its cause...
Picture of Illness. There was no way of telling from examination of one typical subject if the lump in her left breast was benign or malignant. But the thermogram left little doubt. The picture of the left breast came out lighter than normal; the temperature was about 3° higher than in the other breast. Surgery proved that the lump was cancer. A thermogram of another patient, a 68-year-old man with arteriosclerosis, showed his right leg black from the knee down. Its temperature was below normal. The patient had a blocked artery, was dangerously close to gangrene...
...Photographs are reversed, right and left, as a thermogram is made from a mirror reflection of patient...
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