Author/Authors :
Ziaee، نويسنده , , Ali and Parham، نويسنده , , Walter A and Herrmann، نويسنده , , Steven C and Stewart، نويسنده , , Richard E and Lim، نويسنده , , Michael R. and Kern، نويسنده , , Morton J، نويسنده ,
Abstract :
This study compared ostial lesion angiographic severity with physiologic assessment and showed that, for diameter narrowings >70%, fractional flow reserves were >0.75 in 20 of 25 lesions and >0.75 in 30 of 30 lesions with <70% diameter narrowings. Using fractional flow reserve in all ostial narrowings ≥70% may prevent patients from undergoing unnecessary interventions.
