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Background 1: ECG Interpretation
Abstract
This chapter briefly introduces the basic concepts of electrocardiography?the anatomy and physiology of the heart, highlighting the electrophysiological phenomena. This technical overview recalls facts concerning the heart action, only as far as it creates the background necessary for future technical considerations. Therefore, the origin of the signal and the principles of medical interest in electrical heart action representation are put forward. Particular attention is paid to physiological limitations of the signal variability, since this concept is a key for assessment of the limited signal predictability and expected local bandwidth. These terms, not yet common in the everyday ECG description, are a background to the auto-adaptive telemonitoring system proposed as a scientific challenge in Chapters 7 to 11.
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