Figure 3

Regional impact of electrical interventions on the LV. For the respective slice, the T1 map acquired at 5 h post electrical intervention depicts higher signal (orange) in the septum indicating myocardial injury. This matches the histological samples in which interstitial space is greatest in sample acquired from the septum in comparison to the lateral wall. The polar plots on the bottom row depict the quantitative measurements for each of the six segments in the slice at baseline (green) and 5 h post intervention (red), with the change between timepoints shaded in grey.