Fig. 1
From: Heat map visualization for electrocardiogram data analysis
Heat map corresponding to ST-segment elevation conditions for each case. The transverse axis of the heat map represents the leads of the electrocardiograms, and the longitudinal axis represents the cases. Each lattice color represents an ST condition, with blue representing a normal or depressed ST-segment, red representing an elevated ST-segment, and blue-to-red lattice color changes representing the increase in ST amplitude. STE = ST-segment elevation