JOSEPH B. WOLFFE, M.D.
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In spite of the fact that the electrocardiograph long ago attained its majority, there still appears to be a considerable amount of misunderstanding in the minds of physicians, including many who have had years of experience in the field of electrocardiography, as to what constitutes a reliable and accurate time marking system.
In interpreting an electrocardiogram, if any thought at all is given to the matter, it is usually considered that if the time marks on the tracing are uniformly and evenly spaced, they must be correct, and conversely, if they are not even or uniform in their spacing,
WOLFFE JB. INDEPENDENT VS. INTERCONNECTED TIME MARKING SYSTEM EMPLOYED IN ELECTROCARDIOGRAPHS1. Ann Intern Med. 1940;13:1160–1166. doi: 10.7326/0003-4819-13-7-1160
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Published: Ann Intern Med. 1940;13(7):1160-1166.
Cardiac Diagnosis and Imaging, Cardiology.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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