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AJNR - American Journal of Neuroradiology

Published ahead of print on April 24, 2008
doi: 10.3174/ajnr.A1104

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A New Self-Expandable Nitinol Stent for the Treatment of Wide-Neck Aneurysms: Initial Clinical Experience

J.P.P. Peluso^a, W.J. van Rooij^a, M. Sluzewski^a and G.N. Beute^b

^a Department of Radiology, St. Elisabeth Ziekenhuis, Tilburg, the Netherlands
^b Department of Neurosurgery, St. Elisabeth Ziekenhuis, Tilburg, the Netherlands

View larger version (21K): [in this window] [in a new window]   Fig 1. Computer simulation before stent placement in a superior cerebellar artery aneurysm (same patient as in Fig 2). A, 3D image after automated aneurysm detection (blue) and stent simulation. B, Corresponding graph indicating vessel diameters in segment lengths. Proximal and distal diameters are indicated by D1 (4.2 mm) and D2 (2.5 mm). The aneurysm neck is indicated by the bidirectional arrow. Use of a 37-mm stent will provide a proximal and distal overlap of 10 mm.

View larger version (58K): [in this window] [in a new window]   Fig 2. A 58-year-old woman with a ruptured superior cerebellar artery aneurysm without a neck. A and B, 2D and 3D vertebral angiograms demonstrate the dysplastic distal basilar segment with a large superior cerebellar artery aneurysm. The superior cerebellar artery arises from base of the aneurysmal sack, and the dysplastic segment extends to the proximal posterior cerebral arteries. C, Result after stent-assisted coiling. Proximal and distal stent markers are indicated by arrows. Flow in the superior cerebellar artery is preserved.

View larger version (37K): [in this window] [in a new window]   Fig 3. A 46-year-old woman with a wide-neck posterior inferior cerebellar artery aneurysm, additional to another ruptured aneurysm. A, 3D angiogram demonstrates the posterior inferior cerebellar artery originating from the base of the aneurysm. B, 3D image after automated aneurysm detection and stent simulation. C, Complete occlusion after stent-assisted coiling with preserved flow in the posterior inferior cerebellar artery.