Non-dipole components of the heart electrical field in electrocardiographic diagnosis of combined ventricular hypertrophy.
A new method of ECG diagnosis, based on a mathematical model of electrical heart generator as a mobile dipole, was clinically verified in 10 healthy subjects and 2 patients with combined cardiopathy and pronounced bilateral ventricular hypertrophy. Electrocardiograms were recorded in 80 unipolar leads from the body surface; recordings were processed by a computer. The output information were the pathways of the heart electrical centre (dipole) during the heart cycle. The trajectories in patients with combined ventricular hypertrophy markedly differed--even in the absence of ECG changes in standard leads--from trajectories in healthy subjects. The new method of ECG diagnosis consequently offers information which cannot be obtained when using conventional and corrected orthogonal ECG leads.
D000328:Adult; D006332:Cardiomegaly / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D008955:Models, Cardiovascular