TCT-578 Contrast Mediated FFR Plus Intracoronary Injection of Nitroglycerine: A Submaximal Hyperemic Adenosine-Free Index That Accurately Predicts FFR

Fractional flow reserve (FFR) is the gold standard for assessing the physiological significance of coronary disease during invasive angiography. Evaluation of alternative adenosine-free indexes to elucidate ischemic predicament is ongoing. A total of 255 lesions evaluated with pressure wires in 212