Figure 5From: Various clinical scenarios leading to development of the string sign of the internal thoracic artery after coronary bypass surgery: the role of competitive flow, a case series Quantitative coronary analysis measurement of the left anterior descending artery lesion demonstrated 57% diameter stenosis on the left anterior descending artery. However, the pressure wire sensor (black arrow) detected only a nonsignificant translesional gradient during vasodilatation (FFR = 0.89), indicating appropriate competitive flow in the LAD.Back to article page