الفهرس 
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Abstract
The ECG is considered the most important tool to detect heart abnormalities. Inevitably, it is the only tool to predict malfunctions in the conduction system and the electrical activities of the heart.
Until now, the reliability of the ECG depends on statistical data accumulating ECG shapes with the types of diseases causing it.
Heart’s solving problem using the ECG depends mainly on the experlence and personal skills of the cardiologists.
Undoubtedly, there is, and there will be some cases that has not been recorded before, which imposes a severe, si tuation, since the decision should be intolerable and sho~ld be taken fast enough to save a patient’s life.The ECG is an electrical signal that is measured from the body
surface reflecting all the electrical activities in the heart. It is also a measure of the parameters that has a direct effect on an electrical signal passing through them.
For all the reasons above, research studies should extensively
stress on modeling and analysis of the prOblem using an engineering
point of view.
Wi th the use of mathematical and electrical models, two complementary techniques contributes to the solution of the problem. The first one is to assume a model representing the system dnd to examine the effect of the assumed parameters on the”computed” ECG, this is calledthe ”forward problem.