ArticleInterventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences2022
Impact of cerebral aneurysm size on distal intracranial hemodynamics and changes following flow diversion.
Article in Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 6 citations in OpenAlex.
- Intracranial aneurysms as a manifestation of premature vascular aging: Cellular senescence, inflammaging, and wall degeneration.Ageing research reviews · 2026Review
- Aneurysm dome and vessel pressure measurements with coiling, stent assisted coiling and flow diversion.Acta neurochirurgica · 2025Article
- Intracranial hemorrhagic events associated with flow diversion treatment: a retrospective analysis from a single academic institution.Neurosurgical review · 2025Article
- Difficulty and prospects of endovascular treatment for spontaneous intracranial artery dissection.Frontiers in neurology · 2025Review
- Development and validation of a nomogram for predicting early rupture and rebleeding risk after intracranial aneurysm embolization.Frontiers in neurologyArticle
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
backgroundThe impact of cerebral aneurysm size on distal intracranial hemodynamics such as arterial pressure and Pulsatility Index is not completely understood, either before or after flow diversion.
objectiveThe aim of the study is to assess the impact of aneurysm size on distal Pulsatility Index and pressure before and after flow diversion.
methodsFrom December 2015, prospective measurement of middle cerebral artery pressure and Pulsatility Index was performed in consecutive patients with unruptured cerebral aneurysms in the cavernous to communicating segments of the internal carotid artery, which were treated with single flow diversion. Pressure and Pulsatility Index were recorded at the M1-segment ipsilateral to the cerebral aneurysm. Ratio of middle cerebral artery to radial arterial pressure (pressure ratio) was calculated to control for variations in systemic blood pressure. Correlations between aneurysm size and pressure ratio and Pulsatility Index were assessed before and after treatment.
resultsA total of 28 aneurysms were treated. The mean aneurysm size was 7.2 mm. Aneurysm size correlated linearly with systolic pressure ratio (1% pressure ratio increase per mm aneurysm size increase,
conclusionAneurysm size affects distal hemodynamics: patients with larger aneurysms have increased systolic and mean pressure ratio, and increased Pulsatility Index. After flow diversion, mean pressure ratio and Pulsatility Index no longer associate with the aneurysm size, suggesting an effect of the flow diversion also on distal intracranial hemodynamics.
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