TY - JOUR T1 - Changes in the Intraaneurysmal Pressure Due to Hydro<em>Coil</em> Embolization JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 904 LP - 907 VL - 26 IS - 4 AU - Gádor Cantón AU - David I. Levy AU - Juan C. Lasheras Y1 - 2005/04/01 UR - http://www.ajnr.org/content/26/4/904.abstract N2 - BACKGROUND AND PURPOSE: The purpose of this study was to measure the changes in the intraaneurysmal fluid pressure and parent vessel flow characteristics resulting from packing the aneurysmal sac with hydrogel-coated coils.METHODS: Platinum coils coated with an expansible hydrogel were used to embolize a silicone model of the basilar tip aneurysm. The intraaneurysmal fluid pressure was measured with a NeuroCare Camino Pressure Micro-Probe at various packing ratios. A programmable pulsatile pump was used to input a physiologically relevant pulsatile flow in the parent artery.RESULTS: The intraaneurysmal fluid pressure did not increase when packing the aneurysm with hydrogel-coated platinum coils, even with a coil density up to 93%.CONCLUSION: Packing the aneurysm with hydrogel-coated coils at a density up to 93% did not increase the intraaneurysmal fluid pressure. ER -