Retrograde Percutaneous Coronary Intervention in a Case of Takayasu Arteritis with Left Main Coronary Artery Chronic Total Occlusion

Figure 2

IVUS guidance in initial PCI optimization. Initial IVUS run showed LMCA MLA of 1.89 mm² (a), and the mean distal LMCA vessel diameter was 4.36 mm (b). MLA of ostial LAD, mean vessel diameter of the distal landing zone, and the total lesion length were 3.36 mm², 3.32 mm, and 22.5 mm, respectively (c–e). Post IVUS run showed ostial LMCA MSA of 10.42 mm² (f) and ostial LAD MSA of 7.2 mm² (g). The distal stent edge was free of edge dissection or malapposition (h).