fig4

Figure 4. Result of coronary angiography: (A) There is no significant stenosis in the left main coronary artery, left anterior descending artery, or diagonal branches. (B) Mild to moderate stenosis in the mid-segment of the left circumflex artery with no significant stenosis in the obtuse marginal branch. (C) Mild stenosis in the mid-segment of the right coronary artery with no significant stenosis in the posterior left ventricular branch or posterior descending artery. Black arrows indicate the sites without obvious stenosis. LAD: Left anterior descending artery; LCX: left circumflex artery; RCA: right coronary artery.