Proximal true lumen collapse in a chronic type B aortic dissection patient: A case report

Figure 2 Aortic angiography. A: The pigtail catheter adopted a helical shape in the true lumen, with the proximal true lumen being clearly compressed; B: The helical shape of the pigtail catheter was corrected, with aortic angiography showing the large false lumen; C: A balloon dilatation catheter was used to enlarge the small hole in the ANKURA stent graft; D: Aortic angiography revealed no evidence of endoleakage and good blood flow in the left subclavian artery; E: The ANKURA stent graft was enlarged with a balloon dilatation catheter; F: The stent shape appeared satisfactory upon angiographic reassessment.