Coronary microvascular dysfunction is associated with higher frequency of thin-cap fibroatheroma

► We studied microvascular dysfunction as predictor of coronary plaque vulnerability. ► Coronary microvascular dysfunction is associated with higher serum hs-CRP. ► Coronary microvascular dysfunction is an independent predictor of more TCFAs. ► TCFA is known to be a marker for increased epicardial plaque vulnerability.