Figure 4

Graphical representation of the two analysis perspectives: (1) inter-layer analysis aims at comparing the \({\overline{Q} }_{AF}\)/\({\overline{Q} }_{SR}\) ratio, given a specific ventricular rate, across the different myocardial layers (subepicardium, midwall or subendocardium), to assess the differential impact of atrial fibrillation on the perfusion of the different myocardial strata; (2) inter-frequency analysis compares the \({\overline{Q} }_{AF}\)/\({\overline{Q} }_{SR}\) ratio, given a specific myocardial layer across different simulated ventricular rates, to assess the contribution of ventricular rate to the alteration of the coronary circulation. EPI subepicardium, MID midwall, ENDO subendocardium.