Click on image to view larger version.

Figure 1 Percent change in mean luminal diameter of the left anterior descending coronary artery (A) and circumflex artery (B) from baseline, in response to intracoronary acetylcholine infusion. *p = 0.02 versus balloon angioplasty and directional atherectomy groups. Open triangle = Stent group. Closed circle = Balloon angioplasty group. Open square = Directional atherectomy group.