ArticleActa neurochirurgica2016
Hemodynamic alterations after stent implantation in 15 cases of intracranial aneurysm.
Article in Acta neurochirurgica, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 24 citations in OpenAlex.
- Optimizing flow-diverting stent configurations for aneurysm treatment: a computational approach integrating deep learning and differential evolution optimization.Physical and engineering sciences in medicine · 2026Article
- Fusiform versus Saccular Intracranial Aneurysms-Hemodynamic Evaluation of the Pre-Aneurysmal, Pathological, and Post-Interventional State.Journal of clinical medicine · 2024Article
- Stent-assisted coiling of intracranial carotid ophthalmic segment aneurysm segment aneurysms: Long-term follow-up from a single center.Journal of interventional medicine · 2023Article
- Numerical Assessment of the Risk of Abnormal Endothelialization for Diverter Devices: Clinical Data Driven Numerical Study.Journal of personalized medicine · 2022Article
- Stent-alone treatment of unruptured vertebral artery fusiform aneurysms: A comparison of flow diverter and conventional stents.Frontiers in neurology · 2022Article
- Risk factors for repeated recurrence of cerebral aneurysms treated with endovascular embolization.Frontiers in neurology · 2022Article
- Hemodynamic analysis and implantation strategies of delayed intracranial aneurysm rupture after flow diverter treatment.Annals of translational medicine · 2021Article
- Computational Study of Hemodynamic Changes Induced by Overlapping and Compacting of Stents and Flow Diverter in Cerebral Aneurysms.Frontiers in neurology · 2021Article
- Hemodynamic differences by increasing low profile visualized intraluminal support (LVIS) stent local compaction across intracranial aneurysm orifice.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2020Article
- Hemodynamic Effect of the Last Finishing Coils in Packing the Aneurysm Neck.Frontiers in neurology · 2020Article
- Evidence for non-Newtonian behavior of intracranial blood flow from Doppler ultrasonography measurements.Medical & biological engineering & computing · 2019Article
- Endovascular stent-induced alterations in host artery mechanical environments and their roles in stent restenosis and late thrombosis.Regenerative biomaterials · 2018Review
- A New Imaging Tool for Realtime Measurement of Flow Velocity in Intracranial Aneurysms.Clinics and practice · 2017Article
- Combined use of a pCONus and a Solitaire stent: Report of two cases.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2017Article
- Association between hemodynamic modifications and clinical outcome of intracranial aneurysms treated using flow diverters.Proceedings of SPIE--the International Society for Optical Engineering · 2017Article
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Authors and funding
11 authors at 5 institutions in 2 countries.
Funding
Abstract
backgroundStent-assisted coiling technology has been widely used in the treatment of intracranial aneurysms. In the current study, we investigated the intra-aneurysmal hemodynamic alterations after stent implantation and their association with the aneurysm location.
methodsWe first retrospectively studied 15 aneurysm cases [8 internal carotid artery-ophthalmic artery (ICA-OphA) aneurysms and 7 posterior communicating artery (PcoA) aneurysms] treated with Enterprise stents and coils. Then, based on the patient-specific geometries before and after stenting, we built virtual stenting computational fluid dynamics (CFD) simulation models.
resultsBefore and after the stent deployment, the average wall shear stress (WSS) on the aneurysmal sac at systolic peak changed from 7.04 Pa (4.14 Pa, 15.77 Pa) to 6.04 Pa (3.86 Pa, 11.13 Pa), P = 0.001; the spatially averaged flow velocity in the perpendicular plane of the aneurysm dropped from 0.5 m/s (0.28 m/s, 0.7 m/s) to 0.33 m/s (0.25 m/s, 0.49 m/s), P = 0.001, respectively. Post stent implantation, the WSS in ICA-OphA aneurysms and PcoA aneurysms decreased by 14.4 % (P = 0.012) and 16.6 % (P = 0.018), respectively, and the flow velocity also reduced by 10.3 % (P = 0.029) and 10.5 % (P = 0.013), respectively. Changes in the WSS, flow velocity, and pressure were not significantly different between ICA-OphA and PcoA aneurysms (P > 0.05). Stent implantation did not significantly change the peak systolic pressure in either aneurysm type.
conclusionAfter the stent implantation, both the intra-aneurysmal flow velocity and WSS decreased independently of aneurysm type (ICA-OphA and PcoA). Little change was observed in peak systolic pressure.
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