Evidence map›Paper›PMID 24481747›Full record

ArticleNeuroradiology2014

Comparison of high-resolution X-ray and micro-CT for experimental evaluation of intracranial stent prototypes: quality evaluation beyond CE mark.

Andreas Keuler, Christian Taschner, Marc Alexander Brockmann, Hanne Boll, Katharina Förster, Lisa Lutz, Annegret Herrmann-Frank, Monika Lelgemann, Martin Schumacher

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Neuroradiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 38% 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

1 citing paper in PubMed, 1 citations in OpenAlex.

  1. 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

9 authors at 3 institutions in 2 countries.

Andreas KeulerDepartment of Neuroradiology, University Medical Center Freiburg, Breisacher Strasse 64, 79106, Freiburg, Germany, andreas.keuler@uniklinik-freiburg.de.
Christian Taschner
Marc Alexander Brockmann
Hanne Boll
Katharina Förster
Lisa Lutz
Annegret Herrmann-Frank
Monika Lelgemann
Martin Schumacher
University Medical Center Freiburg · DEHeidelberg University · DEUniversity Hospital Heidelberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAs digital mammography and micro-computed tomography (CT) have been used for evaluation of stents deployed in experimental animal models, we compared the two methods regarding their sensitivity to detect abnormalities in three prototypes of intracranial stents.

methodsThree different prototypes of intracranial stents (n = 84) were implanted in various animal models. Explanted stents were examined using digital mammography and micro-CT. The images were compared with respect to maintenance of material and form and the stents were compared to one another. Histological analysis was performed as well.

resultsIn the open-cell stents, expansion of the stent cells was detected in the majority of cases (57.1 %) using micro-CT and less frequently using mammography (42.3 %). The closed-cell stent revealed kink stenoses in mammography as well as in micro-CT (3/7, 42.9 %). Detailed reconstructions of micro-CT images showed high-grade kink stenoses of the flow-diverter stent in two extremely curved vessels. Strut breaks were observed more frequently using micro-CT (6/84, 7.1 %) than by mammography (4/84, 4.8 %). Histology confirmed all changes of stent architecture.

conclusionSignificant changes of stent architecture can be observed and assessed even in the two-dimensional mammographic images. The use of micro-CT is recommended to detect subtle changes like single strut breaks and for three-dimensional information.

Indexed as

StentsAnimalsCarotid Artery, CommonEquipment Failure AnalysisPilot ProjectsRabbitsRadiographic Image EnhancementReproducibility of ResultsSensitivity and SpecificitySpecies SpecificitySwineTomography, X-Ray ComputedTreatment Outcome

Identifiers

PMID24481747
OpenAlexW2033662748

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.