1.Left main stem lesion
2.Left main stem plus three branches lesion
3.Acute myocardial infarction within 6-8 hours, vascular anatomy is suitable for receiving coronary artery bypass grafting
4.Acute myocardial infarction with complications such as papillary muscle rupture, ventricular free wall breaks, etc.
5.Acute Acute myocardial infarction with persistent arrhythmia, ineffective active medical treatment, and vascular anatomy suitable for receiving coronary artery bypass grafting
6. PCI diagnosis or medical treatment of entrapment, cardiac or vascular dissection, pericardial tamponade, etc.