Safety Evaluation and Flow Modification in the Anterior Cerebral Artery after Pipeline Embolization Device Deployment across the Internal Carotid Artery Terminus

Figure 3

Female patient, 56 years old. CTA images showing that a C7 segment aneurysm was treated with a single PED measuring ; the sPED/I-ICA ratio was 1.21. The 6-month follow-up angiography showed that a residual aneurysm was present with in-stent stenosis (indicated by the white arrowhead in d), and the patient’s mRS score was 2. A1 (indicated by the white arrow in d) is intact. (a, b) The A1 origin was covered before and after PED implantation. (c) Contralateral ICA angiography. (d) Six-month follow-up angiography 3D reconstruction showing that most of the residual aneurysm and A1 remained intact, but M1 shows in-stent stenosis.

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