Severe vessel<unk> ity and the presence of eccentric<unk><unk> s have long been identified as significant predictors of percutaneous coronary intervention <unk>  failure, as well as worse clinical outcomes. Challenges in the treatment of<unk><unk> s and<unk> s in<unk>  segments includes difficulty in delivering the interventional equipment and the increased risk of vessel dissection and vessel perforation.
PCI in the angulated or tortuous lesion
PCI in the long lesion
Antiplatelet therapy to support PCI
PCI in the patient with severely depressed ventricular function
Intervention in left main coronary artery disease
PCI in the patient at risk of bleeding
PCI in the patient with in stent restenosis
PCI in the patient with refractory ventricular arrhythmia