Wire Cutting Method Using Rotational Atherectomy for Stretched Spring Wire During Coronary Intervention

Figure 1. Pretreatment Angiographic Images and PCI at the Middle Part of Left Circumflex Coronary Artery (A-1) Pretreatment angiographic images. (A-2, B-1, B-2, C) Angiographic images during the procedures, and corresponding illustration.

Figure 2. IVUS Examination After Rotational Atherectomy and Post-Treatment Angiographic Images (A, B) Angiographic images and intravascular ultrasound (IVUS) images after the spring wire was cut, and corresponding illustration. The numbers on the angiographic image coincide with the numbered IVUS position images.

Figure 3. Pretreatment Angiographic Images and Percutaneous Coronary Interventions for Right Coronary Artery (A-1, A-2) Pretreatment angiographic images. (B-1, B-2, C-1, C-2) Angiographic images during the procedures.

Figure 4. Entrapped Wire was Stretched and Fractured in the Guide Catheter Angiographic and intravascular ultrasound (IVUS) images after the spring wire was fractured, and corresponding illustration of the angiographic image. The numbers on the angiographic image coincide with the numbered IVUS position images.

Figure 5. Rotational Atherectomy for the Entrapped and Stretched Spring Wire Angiographic and intravascular ultrasound (IVUS) images during rotational atherectomy to cut the floating spring wire, and corresponding illustration of the angiographic image. The numbers on the angiographic image coincide with the numbered IVUS position images.

Figure 6. Balloon Lock and Post-Treatment Angiographic Images (A, B-1, B-2) Angiographic images during the procedures, and corresponding illustration (C). Post-treatment angiographic images. (D) The spring wire that was retrieved.