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Technical failure in a left superior cerebellar artery with an SL 3 × 2 WEB. A, A left vertebral angiogram shows the left cerebellar aneurysm. B, 3D rotational angiography with aneurysm measurement. C, WEB deployment attempt, with the proximal marker (white arrow) protruding into the basilar trunk. D, Final angiogram after coiling. E, Retrospective Sim&Cure simulation showing SL 3 WEB protrusion into the superior cerebellar artery and basilar trunk.
