Figure 3: (Case 2) (a) PCI for chronic total occlusion in the midportion of the right coronary artery. The arrow indicates tapered entry of the occlusion. (b) The distal end of the occlusion located just at the bifurcation of the posterior descending artery and atrioventricular branch (arrow). (c) Reentry of the antegrade guidewire to the distal true lumen under the guidance of intravascular ultrasound. (d) Sequential images while performing DLC-facilitated reverse wire technique. Upper right panel shows a schema of the bifurcation and the guidewire position during the DLC-facilitated reverse wire technique. (e) Final angiography revealed adequate vessel dilation and blood flow. PCI: Percutaneous coronary intervention, DLC: Dual-lumen catheter