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Updated: Jul 17, 2026

Microsurgical Venous Pouch Arterial-Bifurcation Aneurysms in the Rabbit Model: Technical Aspects
Published on: May 11, 2011
Analysis of complex framing coil stability in a wide-necked aneurysm model
P E Schloesser1, R S Pakbaz, D I Levy
1Department of Radiology, Division of Neuroradiology, LDS Hospital, Salt Lake City, Utah, USA. peter.schloesser@mtnmedical.com
Abstract:
Appropriately sized 0.010- and 0.018-inch complex framing coils were placed in a wide-necked silicone aneurysm replica, and their stability was evaluated at variable physiologic flow rates using video recording. After detachment, the 0.010-inch coils demonstrated instability/prolapse that was proportional to flow rate. In contrast, 0.018-inch coils held their 3D configuration regardless of flow rate. The findings support the use of 0.018-inch coils (when possible) in aneurysms with unfavorable geometry, particularly in circulations with higher flow rates.
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