Figure 2

Spatiotemporal VCG representation of a patient with myocardial infarction, anterior. The top plot displays VCG signals in three vector components as a function of time, and the bottom part shows the real time cardiac vector movement in the 3D space. Head (green) gives the current position of cardiac vector. Tail (red) indicates the direction and rotation of cardiac vector movements (see animation video in Additional file 1).