SFHAM

Main principles of the model

• Each part of the cardiac muscle is the source of independent instantaneous potential.
• Electric potential coming from a particular part of the myocardium is the result of variation in electric charge density including endocardium, M cells and epicardium.
• QRS unit is the result of the sum of all instantaneous potentials generated during depolarization of particular parts of myocardium.
• The value of instantaneous potential depends on the quality and activity of particular parts of the ventricle walls.
• Time changes in the value of the potentials distribution occurring on the surface of the chest depend on physiological and pathological factors.
• Electrical activity of each part of the myocardium of a healthy individual forms a constant contribution expressed in percentage into the entire activity of the myocardium.