In recent years, the chest microfilm has been used extensively in surveys of large numbers of persons for pulmonary tuberculosis. In some of these surveys, it has been noted that many cardiac, as well as pulmonary, abnormalities were found, and, as a result, it has been recommended that the microfilm be used in surveys for the detection of heart disease. No attempt has been made, however, to determine the accuracy of the microfilm in demonstrating heart disease. It was felt that, before its recommendation for this purpose could be justified, a study of its accuracy should be made.
This is a report of such a study. The incidence of heart disease found on clinical investigation of an unselected group of patients was compared with the incidence of abnormal cardiac silhouettes found in the chest microfilms of the same patients.
Beginning July 1, 1948, the chest microfilms of all new
Slattery RV. HEART DISEASE DISCOVERED ON CHEST MICROFILMS. JAMA. 1953;152(17):1595–1596. doi:10.1001/jama.1953.03690170009004
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