case_images: PMC8207276_01
case_images: CT, angiographic, and IVUS findings of the right SFA. (a) CT and angiographic findings of the right SFA: (1) baseline CT, (2) baseline angiography, (3) after the first procedure, (4) 6 months after the first procedure, (5) after the second procedure, and (6) 6 months after the second procedure. (b) IVUS findings of the right SFA. Blue text: stent area (mm2) (short diameter (mm) x long diameter (mm)); orange text: lumen area (mm2) (short diameter (mm) x long diameter (mm)); and yellow text: % stenosis (calculated as 100 - lumen area/stent area x 100).. CT: computed tomography; IVUS: intravascular ultrasound; IW-NS: interwoven nitinol stent; PC-PES: polymer-coated paclitaxel-eluting stent; SFA: superficial femoral artery.
case_images: 10.1177_2050313X211025929-fig1.jpg
case_images: PMC8207276_01_10.1177_2050313X211025929-fig1.jpg
case_images: fig1-2050313X211025929
case_images: Computed tomography revealed long, calcified, and diffused lesions in bilateral SFA (Figures 1(a1) and 2(a1)). Pre-procedure angiographic findings are shown in Figures 1(a2) and 2(a2). Moreover, a 5.5 x 80-mm IW-NS, 6.0 x 80-mm PC-PES, 6.0 x 80-mm IW-NS, and 7.0 x 80-mm PC-PES were implanted from the distal to the proximal site to cover all SFA lesions after ballooning (Figure 1(a3)). IW-NSs were deployed (Figures 1(a4) and 2(a4)). IVUS findings are shown in Figures 1(b) and 2(b). IW-NSs were relatively well expanded based on the reference diameter of each stent; however, significant lumen loss was observed. The stent area (stent diameter), lumen area (lumen diameter), and % stenosis of each lesion where IW-NSs were implanted are also shown in Figures 1(b) and 2(b). Thereafter, a 6.0 x 120-mm PC-PES was implanted to the distal ISR site, and a 6.0 x 80-mm PC-PES was implanted to the proximal ISR site (Figure 1(a5)). Then, IVUS imaging showed that the newly implanted PC-PESs were relatively well expanded (Figures 1(b) and 2(b)). Restenosis was not observed in the stent implantation sites of the bilateral SFA lesions (Figures 1(a6) and 2(a6)). PC-PESs that were implanted 6 months ago in the implantation site of IW-NSs also had well-maintained expansion, and the lumen area was kept sufficiently (Figures 1(b) and 2(b)).
case_images: CT, angiographic, and IVUS findings of the left SFA. (a) CT and angiographic findings of the left SFA: (1) baseline CT, (2) baseline angiography, (3) after the first procedure, (4) 6 months after the first procedure, (5) after the second procedure, and (6) 6 months after the second procedure. (b) IVUS findings of the left SFA. Blue text: stent area (mm2) (short diameter (mm) x long diameter (mm)); orange text: lumen area (mm2) (short diameter (mm) x long diameter (mm)); and yellow text: % stenosis (calculated as 100 - lumen area/stent area x 100).. CT: computed tomography; IVUS: intravascular ultrasound; IW-NS: interwoven nitinol stent; PC-PES: polymer-coated paclitaxel-eluting stent; SFA: superficial femoral artery.
case_images: 10.1177_2050313X211025929-fig2.jpg
case_images: PMC8207276_01_10.1177_2050313X211025929-fig2.jpg
case_images: fig2-2050313X211025929
case_images: Moreover, a 5.5 x 120-mm IW-NS, 7.0 x 120-mm PC-PES, and 7.0 x 80-mm PC-PES were implanted from the distal to the proximal site to cover all SFA lesions after ballooning (Figure 2(a3)). ISR site (Figure 2(a5)). Implanted stents were post-dilated by a 6-mm non-compliant balloon.
case_images: OCT findings of the right SFA: (a) 7 x 80-mm PC-PES, (b) 6 x 80-mm PC-PES in 6 x 80-mm IW-NS, (c) 6 x 80-mm PC-PES, and (d) 6 x 120-mm PC-PES in 5.5 x 80-mm IW-NS.. OCT: optical coherence tomography; IW-NS: interwoven nitinol stent; PC-PES: polymer-coated paclitaxel-eluting stent.
case_images: 10.1177_2050313X211025929-fig3.jpg
case_images: PMC8207276_01_10.1177_2050313X211025929-fig3.jpg
case_images: fig3-2050313X211025929
case_images: The axial resolution of OCT is 10 times higher than that of IVUS; therefore, OCT imaging provides a much clearer view of the area between the lumen and plaque/neointima surface.   Representative OCT images of each stent are shown in Figure 3.