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PT  - JOURNAL ARTICLE
AU  - Schneiders, J.J.
AU  - VanBavel, E.
AU  - Majoie, C.B.
AU  - Ferns, S.P.
AU  - van den Berg, R.
TI  - A Flow-Diverting Stent Is Not a Pressure-Diverting Stent
AID  - 10.3174/ajnr.A2613
DP  - 2013 Jan 01
TA  - American Journal of Neuroradiology
PG  - E1--E4
VI  - 34
IP  - 1
4099  - http://www.ajnr.org/content/34/1/E1.short
4100  - http://www.ajnr.org/content/34/1/E1.full
SO  - Am. J. Neuroradiol.2013 Jan 01; 34
AB  - SUMMARY: The approach for treatment of large and fusiform intracranial aneurysms has evolved from stent-assisted coiling to treatment with flow-diverting stents. The treatment results for these stents are promising; however, early postprocedural aneurysm rupture has been described. The exact cause of rupture is unknown but might be related to intra-aneurysmal flow and pressure changes. We measured intra-aneurysmal pressure before, during, and after placement of a flow-diverting stent by using a dual-sensor guidewire. The pressure inside the aneurysm momentarily decreased during placement but was restored to baseline values within minutes. The flow-diverting stent does not seem to protect the aneurysm from the stress induced by pressure or pressure changes within the lumen. ICAinternal carotid arteryMCAmiddle cerebral artery