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AJNR - American Journal of Neuroradiology

Published ahead of print on February 4, 2009
doi: 10.3174/ajnr.A1482

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Bailout Stent Deployment during Coil Embolization of Intracranial Aneurysms

E. Yoo^a, D.J. Kim^a, D.I. Kim^a, J.-W. Lee^a and S.H. Suh^a

^a From the Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea

View larger version (94K): [in this window] [in a new window]   Fig 1. A 68-year-old woman presented with SAH from a right IC-PcomA aneurysm. A double-microcatheter technique was used for coiling of the wide-neck aneurysm. A, Native oblique anteroposterior and lateral views. After detachment of the third coil, encroachment of the coil mesh into the parent artery is noted. B, Due to concerns of parent vessel compromise, a 4 x 15 mm Neuroform stent was deployed at the site of the protruded coil mesh, achieving successful molding of the protruded coil mesh and restitution of the parent artery lumen. Residual protruding coil loop is seen on the lateral view, which is probably tacked to the sidewall by the stent. C, Subtracted views. Good parent vessel patency is maintained without signs of thrombus formation.

View larger version (154K): [in this window] [in a new window]   Fig 2. A 66-year-old woman presented with an unruptured right superior hypophyseal aneurysm. A, Native anteroposterior/lateral views. During the deployment of the third coil by using balloon remodeling, protrusion and migration of a loop of the previously detached coil was noted (arrows). Pulsatile movement of the migrated distal coil loop was seen. B, A 4 x 20 mm Neuroform stent is deployed, which successfully sidetacks and stabilizes the migrated loop along the lateral wall of the parent vessel (arrows).