Evidence map›Paper›PMID 30456458›Full record

ArticleNeuroradiology2019

Associations of hemodynamics, morphology, and patient characteristics with aneurysm rupture stratified by aneurysm location.

Felicitas J Detmer, Bong Jae Chung, Carlos Jimenez, Farid Hamzei-Sichani, David Kallmes, Christopher Putman, Juan R Cebral

Abstract read
In one paragraph

Article in Neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

38 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Endoluminal flow diverters in the treatment of sidewall and bifurcation aneurysm: A systematic review and meta-analysis of complications and angiographic outcomes.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2022
    Pooled it
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  14. Computational fluid dynamics and shape analysis enhance aneurysm rupture risk stratification.International journal of computer assisted radiology and surgery · 2025
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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

7 authors.

Felicitas J DetmerBioengineering Department, Volgenau School of Engineering, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA. fdetmer@gmu.edu.ORCID http://orcid.org/0000-0003-0434-0355
Bong Jae ChungBioengineering Department, Volgenau School of Engineering, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA.
Carlos JimenezNeurosurgery Department, University of Antioquia, Medellin, Colombia.
Farid Hamzei-SichaniDepartment of Neurological Surgery, University of Massachusetts, Worcester, MA, USA.
David KallmesDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Christopher PutmanInterventional Neuroradiology Unit, Inova Fairfax Hospital, Falls Church, VA, USA.
Juan R CebralBioengineering Department, Volgenau School of Engineering, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA.

Funding

Improved Evaluation of PCOM Aneurysms: Angio-Architecture, Hemodynamics and ShapeR21NS094780 · NINDS · GEORGE MASON UNIVERSITY · PI CEBRAL, JUAN R · 2015 to 2016
$407k
National Institute of Neurological Disorders and Stroke R21NS094780NINDS NIH HHS R21 NS094780
6 · The paper itself

Abstract

purposeThe mechanisms of cerebral aneurysm rupture are not fully understood. We analyzed the associations of hemodynamics, morphology, and patient age and gender with aneurysm rupture stratifying by location.

methodsUsing image-based models, 20 hemodynamic and 17 morphological parameters were compared in 1931 ruptured and unruptured aneurysms with univariate logistic regression. Rupture rates were compared between males and females as well as younger and older patients and bifurcation versus sidewall aneurysms for different aneurysm locations. Subsequently, associations between hemodynamics and morphology and patient as well as aneurysm characteristics were analyzed for aneurysms at five locations.

resultsCompared to unruptured aneurysms, ruptured aneurysms were characterized by a more irregular shape and were exposed to a more adverse hemodynamic environment described by faster flow, higher wall shear stress, more oscillatory shear, and more unstable and complex flows. These associations with rupture status were consistent for different aneurysm locations. Rupture rates were significantly higher in males at the internal carotid artery (ICA) bifurcation, ophthalmic ICA, and the middle cerebral artery (MCA) bifurcation. At the anterior communicating artery (ACOM) and MCA bifurcation, they were significantly higher for younger patients. Bifurcation aneurysms had significantly larger rupture rates at the MCA and posterior communicating artery (PCOM). In these groups with higher rupture rates, aneurysms were characterized by adverse hemodynamics and more complex shapes.

conclusionHemodynamic and morphological differences between ruptured and unruptured aneurysms are consistent across locations. Adverse morphology and hemodynamics are related to rupture as well as younger age, male gender, and bifurcation aneurysms.

Indexed as

Imaging, Three-DimensionalAdultAgedAge FactorsAneurysm, RupturedBlood Flow VelocityFemaleHemodynamicsHumansImage Interpretation, Computer-AssistedIntracranial AneurysmMagnetic Resonance AngiographyMaleMiddle AgedPulsatile FlowSex FactorsAneurysmCFDHemodynamicsMorphologyRisk factors

Identifiers

PMID30456458
PMCPMC6403015

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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.