Intracoronary Bolus Injection Versus Intravenous Infusion of Adenosine for Assessment of Coronary Flow Velocity Reserve in Women With Signs and Symptoms of Myocardial Ischemia and No Obstructive Coronary Artery Disease

Nonobstructive coronary artery disease is increasingly recognized, and coronary microvascular dysfunction (CMD) is often implicated, but there is no established approach to the evaluation of patients with signs and symptoms of ischemia but no obstructive coronary artery disease [(1)][1]. Coronary