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Figure 1: Mechanical recanalization and stenting for basal artery chronic occlusion. A 63-year-old man was admitted with a 2-month history of dizziness and instability while standing. (a) High-resolution MRI atherosclerotic occlusion of the basal artery (white arrow). (b) Three-dimensional digital subtraction angiography (3D-DSA) showing a rat tail-shaped occlusion at the beginning of the basal artery (white arrow). (c) Gateway balloon (2 mm × 9 mm) dilation was performed followed by insertion of a Neuroform EZ stent measuring 2.5 mm × 15 mm (white arrow) at the occlusion. The measured vascular remnant stenosis was 50%. (d) High-resolution Dyna CT showing the partially expanded stent. (e-f) Introduction of Gateway balloon (2.5 mm × 9 mm) to dilate the residual stenosis of the stent, and review of the 3D-DSA findings showed that the stenosis significantly improved. The residual stenosis was 15%. Anterograde blood flow was restored to Thrombolysis in Cerebral Infarction grade III. (g) Local expansion of the stent significantly improved, as confirmed by Dyna micro-CT. (h) CT angiography performed at the 6-month follow-up shows smooth blood flow in the basal artery stent (white arrow)

Figure 1: Mechanical recanalization and stenting for basal artery chronic occlusion. A 63-year-old man was admitted with a 2-month history of dizziness and instability while standing. (a) High-resolution MRI atherosclerotic occlusion of the basal artery (white arrow). (b) Three-dimensional digital subtraction angiography (3D-DSA) showing a rat tail-shaped occlusion at the beginning of the basal artery (white arrow). (c) Gateway balloon (2 mm × 9 mm) dilation was performed followed by insertion of a Neuroform EZ stent measuring 2.5 mm × 15 mm (white arrow) at the occlusion. The measured vascular remnant stenosis was 50%. (d) High-resolution Dyna CT showing the partially expanded stent. (e-f) Introduction of Gateway balloon (2.5 mm × 9 mm) to dilate the residual stenosis of the stent, and review of the 3D-DSA findings showed that the stenosis significantly improved. The residual stenosis was 15%. Anterograde blood flow was restored to Thrombolysis in Cerebral Infarction grade III. (g) Local expansion of the stent significantly improved, as confirmed by Dyna micro-CT. (h) CT angiography performed at the 6-month follow-up shows smooth blood flow in the basal artery stent (white arrow)