Figure 2: (Case 1) (a) Initial angiography showing a tight stenosis in the proximal LAD artery at the first diagonal bifurcation. (b) Magnified image of the targeted bifurcation. (c) Sequential images while performing the DLC-facilitated reverse wire technique. The upper right panel shows a schema of the bifurcation and the guidewire position during the DLC-facilitated reverse wire technique. (d) Final angiography demonstrating adequate vessel dilation and blood flow. LAD: Left anterior descending, DLC: Dual-lumen catheter