label: American College of Cardiology/American Heart Association Lesion Complexity Score B
label_lc: american college of cardiology/american heart association lesion complexity score b
description: "Tubular (10-20 mm length) or eccentric or moderate tortuosity of proximal segment or moderately angulated segment, 45-90 degrees or irregular contour or moderate to heavy calcification or ostial in location or bifurcation lesions requiring double guidewires or some thrombus present or total occlusion less than 3 months old. (ACC)"