Constantine Potanin, M.R.A.C.P.
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Cholesteric liquid crystals encapsulated onto strips of black mylar sheeting, with a discriminating temperature range of 30 to 37 C, were used to map thoracic thermographic patterns in 17 patients during the pain of angina pectoris induced in 14 by exercise, in 2 patients with acute myocardial infarction, and in 5 patients with acute pericarditis. Criteria of abnormality were twofold: When skin over the mediastinum was cooler than skin over the lung fields; and thermographic assymmetery, except that heart heat can extend further to the left than to the right (asymmetry less than 1C). Simple cardiomegaly had no consistent relationship
Potanin C. Thermographic Differentiation of Pericarditis from the Referred Pain of Ischemic Heart Disease.. Ann Intern Med. ;72:785. doi: 10.7326/0003-4819-72-5-785_4
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Published: Ann Intern Med. 1970;72(5):785.
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