Evidence map›Paper›PMID 23588613›Full record

ArticleNeuroradiology2013

Impact of a new metal artefact reduction algorithm in the noninvasive follow-up of intracranial clips, coils, and stents with flat-panel angiographic CTA: initial results.

Marios-Nikos Psychogios, Bernhard Scholz, Christopher Rohkohl, Yiannis Kyriakou, Alexander Mohr, Peter Schramm, Dorothee Wachter, Katrin Wasser, Michael Knauth

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In one paragraph

Article in Neuroradiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–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

22 citing papers in PubMed.

  1. Article
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  3. Imaging of Intracranial Saccular Aneurysms.Stroke (Hoboken, N.J.) · 2023
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  15. Fatal arterial rupture during angioplasty of a flow diverter in a recurrent, previously Y-stented giant MCA bifurcation aneurysm.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2016
    Article
  16. Article
  17. Flat-detector computed tomography evaluation in an experimental animal aneurysm model after endovascular treatment: A pilot study.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2015
    Article
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  19. Review
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

9 authors.

Marios-Nikos PsychogiosDepartment of Neuroradiology, University Medicine Goettingen, Goettingen, Germany. m.psychogios@med.uni-goettingen.de
Bernhard Scholz
Christopher Rohkohl
Yiannis Kyriakou
Alexander Mohr
Peter Schramm
Dorothee Wachter
Katrin Wasser
Michael Knauth

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionFlat-panel angiographic CT after intravenous contrast agent application (ivACT) is increasingly used as a follow-up examination after coiling, clipping, or stenting. The purpose of this study was to evaluate the feasibility of a new metal artefact reduction algorithm (MARA) in patients treated for intracranial aneurysms and stenosis.

methodsIvACT was performed on a flat-panel detector angiography system after intravenous application of 80 ml contrast media. The uncorrected raw images were transferred to a prototype reconstruction workstation where the MARA was applied. Two experienced neuroradiologists examined the corrected and uncorrected images on a commercially available workstation.

resultsArtefacts around the implants were detected in all 16 uncorrected cases, while eight cases showed remaining artefacts after correction with the MARA. In the cases without correction, there were 11 cases with "extensive" artefacts and five cases with "many" artefacts. After correction, seven cases showed "few" and only one case "many" artefacts (Wilcoxon test, P < 0.001). Parent vessels were characterized as "not identifiable" in 62% of uncorrected images, while the delineation of parent vessels were classified as "excellent" in 50% of the cases after correction (Wilcoxon test, P = 0.001).

conclusionsUse of the MARA in our study significantly reduced artefacts around metallic implants on ivACT images and allowed for the delineation of surrounding structures.

Indexed as

AlgorithmsArtifactsStentsAgedBlood Vessel ProsthesisCerebral AngiographyFemaleFollow-Up StudiesHumansIntracranial AneurysmMaleMechanical ThrombolysisMetalsMiddle AgedRadiographic Image EnhancementRadiographic Image Interpretation, Computer-AssistedMetals

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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.