Fig. 3.

(a) The scheme of “Slipstream” technique. Although, we usually pass the guidewire through both 1st and 2nd guidewire lumen to get strong support during the procedure when we used NavifocusWR intravascular ultrasound (IVUS) catheter, guidewire is passed through 1st guidewire lumen only in this technique. And then, ASAHI SASUKE was put on the same guidewire and advances up to the tip of IVUS catheter.

The picture shows before (b) and immediately after (c) puncture and passing into left anterior descending artery (d).