Evidence map›Paper›PMID 26905866›Full record

ArticleEuropean radiology2016

Added value of CT perfusion compared to CT angiography in predicting clinical outcomes of stroke patients treated with mechanical thrombectomy.

Ioannis Tsogkas, Michael Knauth, Katharina Schregel, Daniel Behme, Katrin Wasser, Ilko Maier, Jan Liman, Marios Nikos Psychogios

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in European radiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  8. Imaging evaluation of acute ischemic stroke.The Journal of international medical research · 2020
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  14. Correlation ofBrain and behavior · 2017
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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 1 institution in 1 country.

Ioannis TsogkasDepartment of Neuroradiology, University Medicine Goettingen, Robert Koch 40, 37075, Goettingen, Germany.
Michael KnauthDepartment of Neuroradiology, University Medicine Goettingen, Robert Koch 40, 37075, Goettingen, Germany.
Katharina SchregelDepartment of Neuroradiology, University Medicine Goettingen, Robert Koch 40, 37075, Goettingen, Germany.
Daniel BehmeDepartment of Neuroradiology, University Medicine Goettingen, Robert Koch 40, 37075, Goettingen, Germany.
Katrin WasserDepartment of Neurology, University Medicine Goettingen, Goettingen, Germany.
Ilko MaierDepartment of Neurology, University Medicine Goettingen, Goettingen, Germany.
Jan LimanDepartment of Neurology, University Medicine Goettingen, Goettingen, Germany.
Marios Nikos PsychogiosDepartment of Neuroradiology, University Medicine Goettingen, Robert Koch 40, 37075, Goettingen, Germany. m.psychogios@med.uni-goettingen.de.
University of Göttingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesCTP images analyzed with the Alberta stroke program early CT scale (ASPECTS) have been shown to be optimal predictors of clinical outcome. In this study we compared two biomarkers, the cerebral blood volume (CBV)-ASPECTS and the CTA-ASPECTS as predictors of clinical outcome after thrombectomy.

methodsStroke patients with thrombosis of the M1 segment of the middle cerebral artery were included in our study. All patients underwent initial multimodal CT with CTP and CTA on a modern CT scanner. Treatment consisted of full dose intravenous tissue plasminogen activator, when applicable, and mechanical thrombectomy. Three neuroradiologists separately scored CTP and CTA images with the ASPECTS score.

resultsSixty-five patients were included. Median baseline CBV-ASPECTS and CTA-ASPECTS for patients with favourable clinical outcome at follow-up were 8 [interquartile range (IQR) 8-9 and 7-9 respectively]. Patients with poor clinical outcome showed a median baseline CBV-ASPECTS of 6 (IQR 5-8, P < 0.0001) and a median baseline CTA-ASPECTS of 7 (IQR 7-8, P = 0.18). Using CBV-ASPECTS and CTA-ASPECTS raters predicted futile reperfusions in 96 % and 56 % of the cases, respectively.

conclusionsCBV-ASPECTS is a significant predictor of clinical outcome in patients with acute ischemic stroke treated with mechanical thrombectomy. KEY POINTS: • CBV-ASPECTS is a significant predictor of clinical outcome. • Single phase CTA-ASPECTS has low predictive value. • Using CBV-ASPECTS, raters identified futile reperfusions in 96 % of the cases.

Indexed as

AgedBiomarkersBlood VolumeBrain IschemiaCerebral AngiographyCerebrovascular CirculationComputed Tomography AngiographyFemaleHumansInfarction, Middle Cerebral ArteryMaleMultimodal ImagingObserver VariationPrognosisRetrospective StudiesStrokeBiomarkersPLAT protein, humanTissue Plasminogen ActivatorNeuroimagingPatient selectionStrokeThrombectomyX-ray computed

Identifiers

PMID26905866
OpenAlexW2274812371

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.