Analysis of complex framing coil stability in a wide-necked aneurysm model.
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.
Schloesser
P E
PE
Department of Radiology, Division of Neuroradiology, LDS Hospital, Salt Lake City, Utah, USA. peter.schloesser@mtnmedical.com
Pakbaz
R S
RS
Levy
D I
DI
Imbesi
S G
SG
Wong
W H
WH
Kerber
C W
CW
D000783:Aneurysm / Q000628:therapy*; D004621:Embolization, Therapeutic / Q000009:adverse effects / Q000295:instrumentation*; D006801:Humans; D066298:In Vitro Techniques; D008422:Materials Testing; D008953:Models, Anatomic; D011475:Prosthesis Failure; D012828:Silicones
D012828:Silicones