1983
DOI: 10.1002/clc.4960060205
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Accuracy of various techniques in the measurement of the duration of the q wave: A possible source of error in diagnosing myocardial infarction by electrocardiography

Abstract: Summary:The method of measuring the width of the Q wave on electrocardiogram is one of the variables contributing to conflicting findings regarding the accuracy of the ECG in the diagnosis of myocardial infarction.This study assesses the accuracy of a variety of methods of measuring the width of the Q wave recorded by direct-writing electrocardiographic instruments. The assessment was made by comparing the width of the Q wave as inscribed by thermal direct-writing electrocardiographs to the width of the Q wave… Show more

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