Buddy Wire Technique to Facilitate Fractional Flow Reserve of an Ostial Right Coronary Artery Lesion

Fractional flow reserve (FFR) is a well-established method to assess the hemodynamic and clinical significance of intermediate coronary artery stenoses. Ostial coronary lesions present a particular challenge to FFR measurements, as the guide needs to be positioned outside the artery during normalization and hyperemia measurements. Utilization of a “buddy wire” can help maintain stability of the coronary guide to facilitate FFR measurements of ostial coronary lesions.