Clinical Impact of Assessment of Myocardial Flow Reserve in Identifying the Cause of Chest Discomfort.

Background: Gamma cameras with cadmium-zinc telluride (CZT) detectors allowed the quantification of myocardial flow reserve (MBF), which can increase the accuracy of myocardial perfusion scintigraphy (MPS) to detect the cause of chest discomfort.

Objective: To assess the clinical impact of MBF to detect the cause of chest discomfort.

Methods: 171 patients with chest discomfort who underwent coronary angiography or coronary CT angiography also underwent MPS and MBF in a time interval of <30 days.