More articles from INTERVENTIONAL
- Flow Diversion for Ophthalmic Artery Aneurysms
This is a retrospective review of 48 patients with 50 carotid-ophthalmic aneurysms in which 44 patients with 46 aneurysms were treated with flow diversion from June 2009 to June 2015. There were no permanent adverse visual outcomes. There was 1 death due to late intraparenchymal hemorrhage (2.2%). Six-month angiography showed complete occlusion in 24 of 37 patients (64.9%), and 3-year angiography results showed occlusion in 24 of 25 patients (96%).
- Ocular Signs Caused by Dural Arteriovenous Fistula without Involvement of the Cavernous Sinus: A Case Series with Review of the Literature
Ocular signs are unusual in the presentation of cranial dural arteriovenous fistulas in locations other than the cavernous sinus. Between 2000–2015, 13 patients met the inclusion criteria for this retrospective analysis. The most common signs were chemosis (61.5%), loss of visual acuity (38.5%), exophthalmia (38.5%), and ocular hypertension (7.7%). Dural arteriovenous fistulas presenting with ocular signs were classified into 4 types due to their pathologic mechanism (local venous reflux into the superior ophthalmic vein, massive venous engorgement of the cerebrum responsible for intracranial hypertension, compression of an oculomotor nerve by a venous dilation, or intraorbital fistula with drainage into the superior ophthalmic vein).
- 3D Printing of Intracranial Aneurysms Using Fused Deposition Modeling Offers Highly Accurate Replications
The authors evaluated fused deposition modeling for the production of aneurysm models replicating patient-specific anatomy using 3D rotational angiographic data from 10 patients. A hollow model with connectors for silicone tubes was fabricated by using acrylonitrile butadiene styrene, the support material was then dissolved, and the surfaces finished by using NanoSeal. The models were filled with iodinated contrast and 3D rotational angiography was performed. Reproduction of hollow aneurysm models was technically feasible in 8 of 10 cases, and a high level of anatomic accuracy was observed.