supported by Science and Technology Planning Project of Guangdong Province(No.2016A020216022)
Background Data on retrograde recanalization of epicardial collateral channels in patients with chronic total occlusion(CTO) undergoing percutaneous coronary intervention(PCI) are limited. Fearing about the complicati...
INTRODUCTION Currently,angiography is widely used for the diagnosis of coronary artery disease,however,its diagnostic accuracy is limited because it is unable to visualize the coronary wall.