A New Algorithm to Diagnose Atrial Ectopic Origin from Multi Lead ECG Systems - Insights from 3D Virtual Human Atria and Torso
Figure 6
Comparison of p-waves and dipole evolution between the simulated and experimental data.
A and B Comparison of the simulated 64-lead ECG P-waves polarity (ii) to experimental data (i). In this figure, the arrangement of the P-waves is set out to match electrode placement (see Fig. 1). We observed the polarity pattern of the P-waves of the experimental and simulation, in the front (A) and back (B) part of the body. The red positive sign signifies an upright P-wave, the blue negative sign represents an inverted P-wave, and the purple positive/negative sign represents a biphasic P-wave. C Spatial (i) and amplitude (ii) temporal evolution of the dipole. The black dots and lines are the experimental data and error bar taken from [14], and the blue lines and dots are obtained from our simulation during a stimuli applied to the superior part of the sino-atrial node region. In (i) the horizontal axis is a continuous scale from the first vertical line electrodes (1–6) to the last line of electrodes (33–38), without taking in to account 31, 32, 63 and 64.