The Drift-Reduction for Improved FFR Using Fiberoptic Technology (DRIFT) Study

"The OptoWire is FDA approved to measure pressure in coronary vessels during diagnostic angiography and coronary interventions.~The OptoWire Deux pressure wire (OpSens Medical, Quebec, Canada) is a novel technology utilizing optical coherence technology to enhance FFR assessment of the coronaries."

A guide wire-based procedure that can accurately measure blood pressure and flow through a specific part of the coronary artery. FFR is done through a standard diagnostic catheter at the time of a coronary angiogram (a.k.a. cardiac catheterization).