Application of a rapid exchange extension catheter technique in type B2/C nonocclusive coronary intervention via a transradial approach

Figure 2 A patient with coronary artery origin anomaly. A: The right coronary artery originated from the left coronary sinus. The left anterior descending artery and left circumflex artery were visible during right coronary artery angiography; B: The stent was successfully passed through the lesion and implanted with the aid of a rapid exchange extension catheter; C: Final angiographic result.