Evidence map›Paper›PMID 29304062›Full record

ArticlePloS one2018

Phase-contrast MRI versus numerical simulation to quantify hemodynamical changes in cerebral aneurysms after flow diverter treatment.

Sergey Sindeev, Philipp Georg Arnold, Sergey Frolov, Sascha Prothmann, Dieter Liepsch, Andrea Balasso, Philipp Berg, Stephan Kaczmarz, Jan Stefan Kirschke

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
3.2field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  10. A Review of the Advancements in theFrontiers in medical technology · 2022
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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

9 authors at 5 institutions in 2 countries.

Sergey SindeevDepartment of Biomedical Engineering, Tambov State Technical University, Tambov, Russia.
Philipp Georg ArnoldDepartment of Neuroradiology, Klinikum rechts der Isar of Technical University of Munich, Munich, Germany.ORCID 0000-0003-0686-7361
Sergey FrolovDepartment of Biomedical Engineering, Tambov State Technical University, Tambov, Russia.
Sascha ProthmannDepartment of Neuroradiology, Klinikum rechts der Isar of Technical University of Munich, Munich, Germany.
Dieter LiepschDepartment of Building Services Engineering, Chemical Engineering for Paper and Packaging, Print and Media Technologies, Munich University of Applied Sciences, Munich, Germany.
Andrea BalassoDepartment of Earth and Environmental Sciences, Ludwig-Maximilian-University of Munich, Munich, Germany.
Philipp BergDepartment of Fluid Dynamics and Technical Flows, University of Magdeburg, Magdeburg, Germany.
Stephan KaczmarzDepartment of Neuroradiology, Klinikum rechts der Isar of Technical University of Munich, Munich, Germany.
Jan Stefan KirschkeDepartment of Neuroradiology, Klinikum rechts der Isar of Technical University of Munich, Munich, Germany.
TUM Klinikum · DETambov State Technical University · RULudwig-Maximilians-Universität München · DEMunich University of Applied Sciences · DEUniversity Hospital Magdeburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cerebral aneurysms are a major risk factor for intracranial bleeding with devastating consequences for the patient. One recently established treatment is the implantation of flow-diverters (FD). Methods to predict their treatment success before or directly after implantation are not well investigated yet. The aim of this work was to quantitatively study hemodynamic parameters in patient-specific models of treated cerebral aneurysms and its correlation with the clinical outcome. Hemodynamics were evaluated using both computational fluid dynamics (CFD) and phase contrast (PC) MRI. CFD simulations and in vitro MRI measurements were done under similar flow conditions and results of both methods were comparatively analyzed. For preoperative and postoperative distribution of hemodynamic parameters, CFD simulations and PC-MRI velocity measurements showed similar results. In both cases where no occlusion of the aneurysm was observed after six months, a flow reduction of about 30-50% was found, while in the clinically successful case with complete occlusion of the aneurysm after 6 months, the flow reduction was about 80%. No vortex was observed in any of the three models after treatment. The results are in agreement with recent studies suggesting that CFD simulations can predict post-treatment aneurysm flow alteration already before implantation of a FD and PC-MRI could validate the predicted hemodynamic changes right after implantation of a FD.

Indexed as

Cerebrovascular CirculationMagnetic Resonance ImagingModels, NeurologicalPatient-Specific ModelingAdultBlood Flow VelocityFemaleHumansIntracranial AneurysmMaleMiddle AgedModels, AnatomicPhantoms, ImagingPrinting, Three-DimensionalSiliconesTreatment OutcomeSilicones

Identifiers

PMID29304062
PMCPMC5755883
OpenAlexW2781980660

What OpenQuestion holds

Textmetadata
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.