Синтез сигналов корригированных ортогональных отведений Макфи-Парунгао по данным электрокардиограммы в 12 отведениях

The study aim was to construct linear transformations for derivation of the signals of McFee-Parungao corrected orthogonal lead system from 12-lead electrocardiogram (ECG-12) and from the synthesized Frank lead system and to assess their accuracy. Sequentially recorded ECG-12 and McPhee-Parungao lead system of 195 patients were used. Linear transformations have been developed for derivation of McFee-Parungao lead system from ECG-12, as well as corrective transformations for derivation of McFee-Parungao lead system from the synthesized Frank lead system. Accuracy of orthogonal ECG and vectorcardiogram approximation and accuracy of derivation of a number of vectorcardiographic and decartographic parameters: ventricular gradient, the angle between the maximal vectors of the QRS and T loops, integral decartographic indexes of left and right ventriclular hypertrophy were assessed. These transformations provide a sufficiently accurate approximation of McPhee Parungao leads derived from ECG-12, as well as practically acceptable fidelity of secondary vectorcardiographic and decartographic parameters.