Figure 7: Sensitivity Index Heatmap

The main sensitivity indices (Si), total sensitivity indices (SiT), and interaction effects are displayed for the 4 input parameters: RCMV, geometry parameters (z1 and z2), and average proximal pressure (Pa). The axis on the right indicates the magnitude of the influence on output (vFFR) result, with higher values having a stronger influence on result. CMV resistance is the dominant influence on vFFR result. CMV = coronary microvascular; RCMV = CMV resistance; other abbreviations as in Figure 3.