Fig. 1.
Receiver-operating characteristic curves show an improved ability to predict coronary microvascular dysfunction as defined by ≥1 abnormal pathway on CFT using a model that included LVEF LV concentricity, MPRI, circumferential strain, longitudinal strain, circumferential strain rates, longitudinal strain rates and presence of >1 CAD risk factor (red line) compared to a model that only included LVEF, LV concentricity and > 1 CAD risk factor alone (black line; 0.82 vs. 0.65, P = 0.007). CFT - coronary reactivity testing; CAD - coronary artery disease; LVEF – left ventricular ejection fraction; MPRI - myocardial perfusion reserve index.