Evidence map›Paper›PMID 33004340›Full record

ArticleAJNR. American journal of neuroradiology2020

Computational Fluid Dynamics Using a Porous Media Setting Predicts Outcome after Flow-Diverter Treatment.

M Beppu, M Tsuji, F Ishida, M Shirakawa, H Suzuki, S Yoshimura

Abstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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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

6 authors.

M BeppuFrom the Department of Neurosurgery (M.B., M.S., S.Y.), Hyogo College of Medicine, Hygo, Japan mikiya.beppu@gmail.com.ORCID 0000-0003-3484-5733
M TsujiDepartment of Neurosurgery (M.T., F.I.), National Hospital Organization Mie Chuo Medical Center, Tsu, Mie, Japan.ORCID 0000-0001-8984-0361
F IshidaDepartment of Neurosurgery (M.T., F.I.), National Hospital Organization Mie Chuo Medical Center, Tsu, Mie, Japan.ORCID 0000-0001-6324-027X
M ShirakawaFrom the Department of Neurosurgery (M.B., M.S., S.Y.), Hyogo College of Medicine, Hygo, Japan.ORCID 0000-0001-5833-2217
H SuzukiDepartment of Neurosurgery (H.S.), Mie University Graduate School of Medicine, Tsu, Mie, Japan.ORCID 0000-0002-8555-5448
S YoshimuraFrom the Department of Neurosurgery (M.B., M.S., S.Y.), Hyogo College of Medicine, Hygo, Japan.ORCID 0000-0002-3600-4842

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeKnowledge about predictors of the outcome of flow-diverter treatment is limited. The aim of this study was to predict the angiographic occlusion status after flow-diverter treatment with computational fluid dynamics using porous media modeling for decision-making in the treatment of large wide-neck aneurysms. MATERIALS AND

methodsA total of 27 patients treated with flow-diverter stents were retrospectively analyzed through computational fluid dynamics using pretreatment patient-specific 3D rotational angiography. These patients were classified into no-filling and contrast-filling groups based on the O'Kelly-Marotta scale. The patient characteristics, morphologic variables, and hemodynamic parameters were evaluated for understanding the outcomes of the flow-diverter treatment.

resultsThe patient characteristics and morphologic variables were similar between the 2 groups. Flow velocity, wall shear stress, shear rate, modified aneurysmal inflow rate coefficient, and residual flow volume were significantly lower in the no-filling group. A novel parameter, called the normalized residual flow volume, was developed and defined as the residual flow volume normalized by the dome volume. The receiver operating characteristic curve analyses demonstrated that the normalized residual flow volume with an average flow velocity of ≥8.0 cm/s in the aneurysmal dome was the most effective in predicting the flow-diverter treatment outcomes.

conclusionsIt was established in this study that the hemodynamic parameters could predict the angiographic occlusion status after flow-diverter treatment.

Indexed as

Models, NeurologicalAdultAgedAged, 80 and overAngiography, Digital SubtractionCerebral AngiographyEmbolization, TherapeuticEndovascular ProceduresFemaleHemodynamicsHumansHydrodynamicsImage Processing, Computer-AssistedImaging, Three-DimensionalIntracranial AneurysmMale

Identifiers

PMID33004340
PMCPMC7658831

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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.