Figure 1.

(A) Initial coronary arteriography shows a 70% to 80% diffuse stenosis in the mid left circumflex artery and a 70% to 80% tandem stenosis in the proximal and mid left anterior descending artery. (B) Intracoronary ultrasound revealed that the minimal luminal area (yellow line) was 2.25 mm² and the external elastic membrane cross sectional area (red line) was 13.5 mm² at the ostium. The proximal left anterior descending artery stenotic lesion consisted of mixed plaque. Therefore, the stenotic area was approximately 83.5%. A left circumflex artery (blue line) and a wire (arrow) are shown.