Figure 4

Comparison between the methods in a control. Analysis of an original LGE image of a control patient. The upper panel shows the relative distribution of pixel intensity of myocardium (blue line) and the Rayleigh curve derived from the signal of the background-ROI (pink line). In this patient there is a good overlap between the two curves (concordance 93%). The thresholds of SD2, SD6 and RC methods are evidenced. In the inferior panels in left to right order are showed the original LGE image contoured, the parametric map derived from the SD2 method, from the SD6 method and from the RC method. In this case SD2 committed a large overestimation of enhancement as evidenced both in the graph and in the parametric map.