Open-cell stent and use of cone-beam CT enables a safe and effective coil embolization of true ophthalmic artery and anterior choroidal artery aneurysms with preservation of parent vessel: Clinical and angiographic results

UMMS Affiliation

Department of Radiology, Division of Neuroimaging and Intervention; New England Center for Stroke Research

Publication Date


Document Type



Nervous System Diseases | Neurology | Radiology


Background:Treatment of true ophthalmic artery (OA) or anterior choroidal artery (AChA) aneurysms with preservation of the parent vessel may be challenging. Flow diverters have limitations when dealing with branch vessels arising from the aneurysm sac. Visual loss or AChA territory infarcts have been reported both for surgical and endovascular treatment.

Methods: We evaluated the safety and efficacy of an open-cell design, laser-cut, self-expanding Nitinol stent, and use of cone-beam computed tomography (CBCT) for stent-assisted coil embolization.

Results: A total of seven patients with unruptured OA or AChA aneurysms were enrolled in this prospective small case study and the data were analyzed retrospectively. A complete obliteration was achieved in all aneurysms immediately post-intervention or at six-month follow-up without any evidence for recanalization at up to three-year follow-up. All patients tolerated the procedure well and there was no change in baseline modified Rankin Scale.

Conclusions: Our study suggests that specific features of an open-cell stent allow a safe and effective treatment of OA or AChA aneurysms with a high technical success rate and excellent mid-term angiographic and clinical outcome. CBCT is a useful intraoperative imaging tool.


Aneurysm, coil embolization, endovascular, internal carotid artery, open-cell stent

DOI of Published Version



Interv Neuroradiol. 2017 Jan 1:1591019917747246. doi: 10.1177/1591019917747246. Link to article on publisher's site

Journal/Book/Conference Title

Interventional neuroradiology: journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences

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Link to Article in PubMed

PubMed ID