Evidence map›Paper›PMID 33361379›Full record

ArticleAJNR. American journal of neuroradiology2021

Regional Aneurysm Wall Enhancement is Affected by Local Hemodynamics: A 7T MRI Study.

S Hadad, F Mut, B J Chung, J A Roa, A M Robertson, D M Hasan, E A Samaniego, J R Cebral

Abstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

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

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  17. Luminal enhancement in intracranial aneurysms: fact or feature?-A quantitative multimodal flow analysis.International journal of computer assisted radiology and surgery · 2021
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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

8 authors.

S HadadFrom the Departments of Bioengineering and Mechanical Engineering (S.H., F.M., J.R.C.), George Mason University, Fairfax, Virginia shadad@gmu.edu.ORCID 0000-0003-2899-4425
F MutFrom the Departments of Bioengineering and Mechanical Engineering (S.H., F.M., J.R.C.), George Mason University, Fairfax, Virginia.ORCID 0000-0003-1907-3739
B J ChungDepartment of Applied Mathematics and Statistics (B.J.C.), Mountclair State University, Mountclair, New Jersey.ORCID 0000-0002-5846-7944
J A RoaDepartments of Neurology, Neurosurgery, and Radiology (J.A.R., E.A.S.).ORCID 0000-0003-4987-8853
A M RobertsonDepartment of Mechanical Engineering and Material Science (A.M.R.), University of Pittsburgh, Pittsburgh, Pennsylvania.ORCID 0000-0002-5063-4293
D M HasanNeurosurgery (D.M.H.), University of Iowa, Iowa City, Iowa.ORCID 0000-0002-8335-5442
E A SamaniegoDepartments of Neurology, Neurosurgery, and Radiology (J.A.R., E.A.S.).ORCID 0000-0003-2764-2268
J R CebralFrom the Departments of Bioengineering and Mechanical Engineering (S.H., F.M., J.R.C.), George Mason University, Fairfax, Virginia.ORCID 0000-0002-3216-0856

Funding

University of Iowam - Whole Body 7T MRI ScannerS10RR028821 · NCRR · UNIVERSITY OF IOWA · PI MAGNOTTA, VINCENT A · 2010 to 2010
$8.0M
Improving Cerebral Aneurysm Risk Assessment through Understanding Wall Vulnerability and Failure ModesR01NS097457 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CEBRAL, JUAN R, ROBERTSON, ANNE MARIE · 2016 to 2025
$6.0M
NCRR NIH HHS S10 RR028821NINDS NIH HHS R01 NS097457
6 · The paper itself

Abstract

background and purposeAneurysm wall enhancement has been proposed as a biomarker for inflammation and instability. However, the mechanisms of aneurysm wall enhancement remain unclear. We used 7T MR imaging to determine the effect of flow in different regions of the wall. MATERIALS AND

methodsTwenty-three intracranial aneurysms imaged with 7T MR imaging and 3D angiography were studied with computational fluid dynamics. Local flow conditions were compared between aneurysm wall enhancement and nonenhanced regions. Aneurysm wall enhancement regions were subdivided according to their location on the aneurysm and relative to the inflow and were further compared.

resultsOn average, wall shear stress was lower in enhanced than in nonenhanced regions (

conclusionsAneurysm wall enhancement regions tend to have lower wall shear stress than nonenhanced regions of the same aneurysm. Moreover, the association between flow conditions and aneurysm wall enhancement seems to depend on the location of the region on the aneurysm sac. Regions at the neck and close to the inflow tend to be exposed to higher wall shear stress and wall shear stress gradients. Regions at the body, dome, or far from the inflow tend to be exposed to uniformly low wall shear stress and have more aneurysm wall enhancement.

Indexed as

Cerebral AngiographyHemodynamicsHumansIntracranial AneurysmMagnetic Resonance ImagingMaleStress, Mechanical

Identifiers

PMID33361379
PMCPMC7959446

What OpenQuestion holds

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Registered trials

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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.