Fig. 1From: An application of RASER technique in the treatment of chronic total occlusion accompanied with stent fracture in right coronary artery: a case reportImages of coronary angiography and PCI 4 years ago. a, severe and diffused stenosis in the middle segment of RCA; b, severe and diffused stenosis in the proximal segment of LAD; c, postoperative angiography of RCA; d, postoperative angiography of LADBack to article page