Digitized cardiac potentials recorded with CR leads. Development of a portable electrocardiograph.
This report describes the advantages of recording cardiac potentials in digital rather than in analog form and of using statistical methods that compare a patient's measurements with values measured in a normal population. In this study, expansion of the time axis in digitized electrocardiograms was used to accurately determine the moments when the Q, R, and S waves began and ended. This work is part of a plan to develop a portable electrocardiograph that could be available to physicians at all times. The immediate availability of such an instrument could shorten the time required to reach a diagnosis and institute treatment in cardiac emergencies occurring where diagnostic facilities are unavailable.
Department of Physiology and Biophysics, University of Miami School of Medicine 33101.
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De Gasperi
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McCulloh
D000293:Adolescent; D000328:Adult; D000703:Analog-Digital Conversion; D000789:Angina, Unstable / Q000175:diagnosis*; D003325:Coronary Care Units / Q000379:methods; D003936:Diagnosis, Computer-Assisted; D004562:Electrocardiography / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D008297:Male; D008838:Microcomputers; D008875:Middle Aged; D012016:Reference Values