Evidence map›Paper›PMID 24568540›Full record

Observational studyBMC neurology2014

Prediction of outcome in patients with suspected acute ischaemic stroke with CT perfusion and CT angiography: the Dutch acute stroke trial (DUST) study protocol.

Tom van Seeters, Geert Jan Biessels, Irene C van der Schaaf, Jan Willem Dankbaar, Alexander D Horsch, Merel J A Luitse, Joris M Niesten, Willem P T M Mali, L Jaap Kappelle, Yolanda van der Graaf and 2 more

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in BMC neurology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

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

  1. Clinical prediction of thrombectomy eligibility: A systematic review and 4-item decision tree.International journal of stroke : official journal of the International Stroke Society · 2019
    Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Sex differences in intracranial and extracranial atherosclerosis in patients with acute ischemic stroke.International journal of stroke : official journal of the International Stroke Society · 2021
    Article
  10. Article
  11. Review
  12. Posterior circulation ischemic stroke-a review part II: imaging and acute treatment.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2019
    Review
  13. Article
  14. Article
  15. Consensus statement on current and emerging methods for the diagnosis and evaluation of cerebrovascular disease.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Review
  16. Observational
  17. Article
  18. Article
  19. Observational
  20. 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

12 authors.

Tom van SeetersDepartment of Radiology, University Medical Center Utrecht, Heidelberglaan 100, HP E01,132, 3584 CX, Utrecht, The Netherlands. T.vanSeeters@umcutrecht.nl.
Geert Jan Biessels
Irene C van der Schaaf
Jan Willem Dankbaar
Alexander D Horsch
Merel J A Luitse
Joris M Niesten
Willem P T M Mali
L Jaap Kappelle
Yolanda van der Graaf
Birgitta K Velthuis
DUST investigators

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrediction of clinical outcome in the acute stage of ischaemic stroke can be difficult when based on patient characteristics, clinical findings and on non-contrast CT. CT perfusion and CT angiography may provide additional prognostic information and guide treatment in the early stage. We present the study protocol of the Dutch acute Stroke Trial (DUST). The DUST aims to assess the prognostic value of CT perfusion and CT angiography in predicting stroke outcome, in addition to patient characteristics and non-contrast CT. For this purpose, individualised prediction models for clinical outcome after stroke based on the best predictors from patient characteristics and CT imaging will be developed and validated. METHODS/

designThe DUST is a prospective multi-centre cohort study in 1500 patients with suspected acute ischaemic stroke. All patients undergo non-contrast CT, CT perfusion and CT angiography within 9 hours after onset of the neurological deficits, and, if possible, follow-up imaging after 3 days. The primary outcome is a dichotomised score on the modified Rankin Scale, assessed at 90 days. A score of 0-2 represents good outcome, and a score of 3-6 represents poor outcome. Three logistic regression models will be developed, including patient characteristics and non-contrast CT (model A), with addition of CT angiography (model B), and CT perfusion parameters (model C). Model derivation will be performed in 60% of the study population, and model validation in the remaining 40% of the patients. Additional prognostic value of the models will be determined with the area under the curve (AUC) from the receiver operating characteristic (ROC) curve, calibration plots, assessment of goodness-of-fit, and likelihood ratio tests. DISCUSSION: This study will provide insight in the added prognostic value of CTP and CTA parameters in outcome prediction of acute stroke patients. The prediction models that will be developed in this study may help guide future treatment decisions in the acute stage of ischaemic stroke.

Indexed as

Cerebral AngiographyPerfusionTomography, X-Ray ComputedBrain IschemiaCohort StudiesFollow-Up StudiesHumansNetherlandsPredictive Value of TestsProspective StudiesStrokeTreatment Outcome

Identifiers

PMID24568540
PMCPMC3939816

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Registered trials

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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.