Evidence map›Paper›PMID 25647090›Full record

ArticleJournal of biomechanical engineering2015

Characterization of the discrepancies between four-dimensional phase-contrast magnetic resonance imaging and in-silico simulations of cerebrospinal fluid dynamics.

Soroush Heidari Pahlavian, Alexander C Bunck, Francis Loth, R Shane Tubbs, Theresia Yiallourou, Jan Robert Kroeger, Walter Heindel, Bryn A Martin

Open access · greenAbstract read
In one paragraph

Article in Journal of biomechanical engineering, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.4field-weighted citation impact, top 21% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

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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 at 5 institutions in 5 countries.

Soroush Heidari Pahlavian
Alexander C Bunck
Francis Loth
R Shane Tubbs
Theresia Yiallourou
Jan Robert Kroeger
Walter Heindel
Bryn A Martin
University of Akron · USUniversity Hospital Cologne · DEÉcole Polytechnique Fédérale de Lausanne · CHSt. George's University · GDUniversity Hospital Münster · DE

Funding

Clinical Utility of MR based Hydrodynamic Parameters in Chiari MalformationR15NS071455 · NINDS · UNIVERSITY OF AKRON · PI LOTH, FRANCIS · 2010 to 2010
$485k
NINDS NIH HHS 1R15NS071455-01NINDS NIH HHS R15 NS071455
6 · The paper itself

Abstract

The purpose of the present study was to compare subject-specific magnetic resonance imaging (MRI)-based computational fluid dynamics (CFD) simulations with time-resolved three-directional (3D) velocity-encoded phase-contrast MRI (4D PCMRI) measurements of the cerebrospinal fluid (CSF) velocity field in the cervical spinal subarachnoid space (SSS). Three-dimensional models of the cervical SSS were constructed based on MRI image segmentation and anatomical measurements for a healthy subject and patient with Chiari I malformation. CFD was used to simulate the CSF motion and compared to the 4D PCMRI measurements. Four-dimensional PCMRI measurements had much greater CSF velocities compared to CFD simulations (1.4 to 5.6× greater). Four-dimensional PCMRI and CFD both showed anterior and anterolateral dominance of CSF velocities, although this flow feature was more pronounced in 4D PCMRI measurements compared to CFD. CSF flow jets were present near the nerve rootlets and denticulate ligaments (NRDL) in the CFD simulation. Flow jets were visible in the 4D PCMRI measurements, although they were not clearly attributable to nerve rootlets. Inclusion of spinal cord NRDL in the cervical SSS does not fully explain the differences between velocities obtained from 4D PCMRI measurements and CFD simulations.

Indexed as

Computer SimulationHydrodynamicsMagnetic Resonance ImagingPatient-Specific ModelingArnold-Chiari MalformationCerebrospinal FluidHumansImaging, Three-DimensionalLigamentsMaleModels, BiologicalSpinal Nerve RootsYoung Adult

Identifiers

PMID25647090
PMCPMC4345414
OpenAlexW2157852355

What OpenQuestion holds

Textmetadata
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.