Bioresorbable magnesium scaffold in the treatment of simple coronary bifurcation lesions: The BIFSORB pilot II study

Figures

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  Figure 1. Study procedure flowchart. OCT, optical coherence tomography; POT, proximal optimization technique [Color figure can be viewed at wileyonlinelibrary.com]

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  Figure 2. Segmental model of the different segments for OCT analysis. MV, main vessel; OCT, optical coherence tomography [Color figure can be viewed at wileyonlinelibrary.com]

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  Figure 3. Patient case setup showing final angiogram and final OCT at baseline. (A) Final angiogram. (B) Cross‐section from the distal main vessel. (C) Carina point. (D) Bifurcation core segment with the open side branch. (E) Image from proximal MV. (F) Three‐dimensional reconstruction of the side branch ostium. (G) Longitudinal view of the OCT pullback. White lines mark the individual cross‐sections. OCT, optical coherence tomography [Color figure can be viewed at wileyonlinelibrary.com]

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  Figure 4. Scaffold fractures. Three‐dimensional (3D) reconstructed images of the three cases with scaffold fractures. Horizontally aligned images are from the same case. (A) The white arrows indicate a distally embolized scaffold fragment. By 3D rendering, the entire scaffold can be visualized, and the marked scaffold part is extra. (B) Same case at the proximal scaffold edge. The blue arrow marks a break in the scaffold and a part is missing. (C) Second case with distal embolization of the fragment (marked by white arrows). (D) Same case at the proximal edge of the scaffold. Blue arrow marks a break in the scaffold and a part of the scaffold is missing. (E) Third case; the red arrow marks the OCT catheter. Unflushed blood is trapped between the catheter and the vessel wall. The white arrow marks a scaffold fragment. (F) Same case with fracture. Parts of the scaffold missing in the proximal end (blue arrow). OCT, optical coherence tomography [Color figure can be viewed at wileyonlinelibrary.com]

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  Figure 5. Neointimal bridging at 12‐months follow‐up. (A) Cut‐plane analysis of the side branch ostium from QAngioOCT. (B) 3D reconstruction of the side branch ostium showing neointimal bridging. The scaffold struts seem completely resorbed as no struts or strut shadows can be identified by OCT. 3D, three‐dimensional; OCT, optical coherence tomography [Color figure can be viewed at wileyonlinelibrary.com]