fig6

Figure 6. OCT analysis of BRS deployment. (A) After BRS deployment, there is incomplete strut apposition (ISA). (A1) There are 4 malapposed struts between 10 and 12 o’clock position in (A1); (A2) showing the area of malapposed struts (highlighted in green); (B1) Tissue prolapse, defined as tissue protruding between the struts. The prolapse area was measured as the difference between the struts and lumen area (highlighted in green in (B2); (C) An example of edge dissection (arrow) distal to the BRS. Because of the large lumen size and small circumferential extension of dissection, no additional BRS was deployed; (D) BRS strut fracture shown by the arrow. OCT: Optical coherence tomography; BRS: bioresorbable scaffold.