Evidence map›Paper›PMID 29922867›Full record

ArticleActa neurochirurgica2018

Development of a statistical model for discrimination of rupture status in posterior communicating artery aneurysms.

Felicitas J Detmer, Bong Jae Chung, Fernando Mut, Michael Pritz, Martin Slawski, Farid Hamzei-Sichani, David Kallmes, Christopher Putman, Carlos Jimenez, Juan R Cebral

Abstract read
In one paragraph

Article in Acta neurochirurgica, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

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  6. Computational fluid dynamics and shape analysis enhance aneurysm rupture risk stratification.International journal of computer assisted radiology and surgery · 2025
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  13. Review
  14. Multiple Aneurysms AnaTomy CHallenge 2018 (MATCH)-phase II: rupture risk assessment.International journal of computer assisted radiology and surgery · 2019
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  16. Article
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.

Felicitas J DetmerBioengineering Department, Volgenau School of Engineering, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA. fdetmer@gmu.edu.ORCID 0000-0003-0434-0355
Bong Jae ChungBioengineering Department, Volgenau School of Engineering, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA.
Fernando MutBioengineering Department, Volgenau School of Engineering, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA.
Michael PritzBioengineering Department, Volgenau School of Engineering, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA.
Martin SlawskiStatistics Department, George Mason University, Fairfax, VA, USA.
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.
Carlos JimenezNeurosurgery Department, University of Antioquia, Medellin, Colombia.
Juan R CebralBioengineering Department, Volgenau School of Engineering, George Mason University, 4400 University Drive, Fairfax, VA, 22030, USA.
George Mason University · USInova Fairfax Hospital · USMayo Clinic · USUniversidad de Antioquia · COUniversity of Massachusetts Chan Medical School · US

Funding

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

Abstract

backgroundIntracranial aneurysms at the posterior communicating artery (PCOM) are known to have high rupture rates compared to other locations. We developed and internally validated a statistical model discriminating between ruptured and unruptured PCOM aneurysms based on hemodynamic and geometric parameters, angio-architectures, and patient age with the objective of its future use for aneurysm risk assessment.

methodsA total of 289 PCOM aneurysms in 272 patients modeled with image-based computational fluid dynamics (CFD) were used to construct statistical models using logistic group lasso regression. These models were evaluated with respect to discrimination power and goodness of fit using tenfold nested cross-validation and a split-sample approach to mimic external validation.

resultsThe final model retained maximum and minimum wall shear stress (WSS), mean parent artery WSS, maximum and minimum oscillatory shear index, shear concentration index, and aneurysm peak flow velocity, along with aneurysm height and width, bulge location, non-sphericity index, mean Gaussian curvature, angio-architecture type, and patient age. The corresponding area under the curve (AUC) was 0.8359. When omitting data from each of the three largest contributing hospitals in turn, and applying the corresponding model on the left-out data, the AUCs were 0.7507, 0.7081, and 0.5842, respectively.

conclusionsStatistical models based on a combination of patient age, angio-architecture, hemodynamics, and geometric characteristics can discriminate between ruptured and unruptured PCOM aneurysms with an AUC of 84%. It is important to include data from different hospitals to create models of aneurysm rupture that are valid across hospital populations.

Indexed as

AgedAneurysm, RupturedCerebral AngiographyFemaleHemodynamicsHumansIntracranial AneurysmLogistic ModelsMaleMiddle AgedCerebral aneurysmHemodynamicsMorphologyPosterior communicating arteryPredictionRupture

Identifiers

PMID29922867
PMCPMC6309378
OpenAlexW2808938398

What OpenQuestion holds

Textmetadata
LicenceTDM
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.