PT  - JOURNAL ARTICLE
AU  - Cantón, Gádor
AU  - Levy, David I.
AU  - Lasheras, Juan C.
TI  - Changes in the Intraaneurysmal Pressure Due to Hydro<em>Coil</em> Embolization
DP  - 2005 Apr 01
TA  - American Journal of Neuroradiology
PG  - 904--907
VI  - 26
IP  - 4
4099  - http://www.ajnr.org/content/26/4/904.short
4100  - http://www.ajnr.org/content/26/4/904.full
SO  - Am. J. Neuroradiol.2005 Apr 01; 26
AB  - 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.