Insulin Resistance and Coronary Microvascular Dysfunction in Patients with Myocardial Ischemia and Non-obstructive Coronary Artery Disease

Coronary microvascular assessment with the derivation of CFR, IMR and MRR will be performed using a standard pressure/thermodilution guidewire.

Infusion of insulin and glucose adjusting rate of glucose infusion to maintaine plasma glucose around 90 mg/dL by monitoring plasma glucose levels every 5-10 minutes