Evidence map›Paper›PMID 33921861›Full record

ArticleBrain sciences2021

Morphological and Hemodynamic Changes during Cerebral Aneurysm Growth.

Emily R Nordahl, Susheil Uthamaraj, Kendall D Dennis, Alena Sejkorová, Aleš Hejčl, Jaroslav Hron, Helena Švihlová, Kent D Carlson, Yildirim Bora Suzen, Dan Dragomir-Daescu

Open access · goldAbstract read
In one paragraph

Article in Brain sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.6field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 22 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 2 countries.

Emily R NordahlDepartment of Mechanical Engineering, NDSU, Fargo, ND 58108, USA.
Susheil UthamarajDivision of Engineering, Mayo Clinic, Rochester, MN 55905, USA.
Kendall D DennisDivision of Engineering, Mayo Clinic, Rochester, MN 55905, USA.
Alena SejkorováDepartment of Neurosurgery, Masaryk Hospital, J. E. Purkyně University, 401 13 Usti, Czech Republic.ORCID 0000-0001-9987-1110
Aleš HejčlDepartment of Neurosurgery, Masaryk Hospital, J. E. Purkyně University, 401 13 Usti, Czech Republic.ORCID 0000-0002-9206-1980
Jaroslav HronFaculty of Mathematics and Physics, Mathematical Institute, Charles University, Ke Karlovu 3, 121 16 Prague, Czech Republic.ORCID 0000-0001-5862-2353
Helena ŠvihlováFaculty of Mathematics and Physics, Mathematical Institute, Charles University, Ke Karlovu 3, 121 16 Prague, Czech Republic.ORCID 0000-0002-2742-5602
Kent D CarlsonDepartment of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA.
Yildirim Bora SuzenDepartment of Mechanical Engineering, NDSU, Fargo, ND 58108, USA.
Dan Dragomir-DaescuDepartment of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN 55905, USA.
Charles University · CZJan Evangelista Purkyně University in Ústí nad Labem · CZMayo Clinic · USMayo Clinic in Florida · USNorth Dakota State University · US

Funding

Ministerstvo Školství, Mládeže a Tělovýchovy LQ1605 from the National Program of Sustainability II.Ministerstvo Zdravotnictví Ceské Republiky 17-32872A
6 · The paper itself

Abstract

Computational fluid dynamics (CFD) has grown as a tool to help understand the hemodynamic properties related to the rupture of cerebral aneurysms. Few of these studies deal specifically with aneurysm growth and most only use a single time instance within the aneurysm growth history. The present retrospective study investigated four patient-specific aneurysms, once at initial diagnosis and then at follow-up, to analyze hemodynamic and morphological changes. Aneurysm geometries were segmented via the medical image processing software Mimics. The geometries were meshed and a computational fluid dynamics (CFD) analysis was performed using ANSYS. Results showed that major geometry bulk growth occurred in areas of low wall shear stress (WSS). Wall shape remodeling near neck impingement regions occurred in areas with large gradients of WSS and oscillatory shear index. This study found that growth occurred in areas where low WSS was accompanied by high velocity gradients between the aneurysm wall and large swirling flow structures. A new finding was that all cases showed an increase in kinetic energy from the first time point to the second, and this change in kinetic energy seems correlated to the change in aneurysm volume.

Indexed as

aneurysm growthcomputational fluid dynamicshemodynamicskinetic energyoscillatory shear indexwall shear stress

Identifiers

PMID33921861
PMCPMC8073033
OpenAlexW3156614428

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.