Influence of the Amount of Myocardium Subtended by a Stenosis on Fractional Flow Reserve.

The article discusses a study which examined the influence of the amount of myocardium subtended by a stenosis on fractional flow reserve (FFR), especially in relation to quantitative coronary angiography. The study assessed the severity of each lesion and evaluated the amount of jeopardized myocardium using three validates scores. Results revealed concomitant collateralized chronic total occlusion and the correlation of FFR values to minimal lumen diameter, diameter stenosis and the scores.