Forum:Featured article

Electrocardiography
Electrocardiography is one of the most basic noninvasive diagnostic methods in medicine. Graphic record of the electrocardiography is called electrocardiogram (ECG, EKG). It is based on recording of electric potential generated by heart on body surface. This methode is used in diagnostic of heart disease. Indications

ECG is indicated if there is suspicion on e.g. Heart diseases, metabolic and endocrine disorders.

Everything is based on heart depolarization and repolarization. These processes can be presented by vectors of electrical potentials. ECG is recording of summation of electrical potential vectors from multiple myocardial fibers, not only from cardiac conduction system. Every myocardial fiber can generate electrical potential. These electrical potentials are conducted by body fluids (which are very good conductors) to the body surface, where they are recorded.[1]