Fig. 2From: Role of IVUS in the rectification of angiographically judged ramus intermedius and its clinical significanceProportions of IVUS-RI, IVUS-h-D and IVUS-h-OM in IVUS views and the distribution characteristics of IVUS-h-D on IVUS. a The pie chart shows that only 54% of CAG-RIs were confirmed by IVUS, and the proportions of IVUS-h-D and IVUS-h-OM were 19% and 27%, respectively. b Distance from ostial h-D to the LM furcation carina (mm). RI, ramus intermedius; h-D, high-origin diagonal branch; h-OM, high-origin obtuse marginal artery; IVUS, intravascular ultrasonography; LM, left mainBack to article page