Evidence map›Paper›PMID 34587794›Full record

Trial reportStroke2022

Prediction of Stroke Infarct Growth Rates by Baseline Perfusion Imaging.

Anke Wouters, David Robben, Soren Christensen, Henk A Marquering, Yvo B W E M Roos, Robert J van Oostenbrugge, Wim H van Zwam, Diederik W J Dippel, Charles B L M Majoie, Wouter J Schonewille and 5 more

Open access · bronzeAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Stroke, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.6field-weighted citation impact, top 6% 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, 38 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

15 authors at 9 institutions in 4 countries.

Anke Wouters *Department of Neurology, University Hospitals Leuven, Belgium (A.W., R.L.).ORCID 0000-0001-5229-2699
David Robben *Medical Imaging Research Center (MIRC), KU Leuven, Belgium (D.R., P.S.).
Soren ChristensenGrayNumber Analytics, Lomma, Sweden (S.C.).
Henk A MarqueringDepartment of Radiology and Nuclear Medicine, Academic Medical Center, Amsterdam, the Netherlands (H.A.M., C.B.L.M.M.).
Yvo B W E M RoosDepartment of Neurology, Academic Medical Center, the Netherlands (A.W., Y.B.W.E.M.R.).
Robert J van OostenbruggeDepartment of Neurology, Maastricht University Medical Center and Cardiovascular Research Institute (CARIM), the Netherlands (R.J.v.O.).
Wim H van ZwamDepartment of Radiology, Maastricht University Medical Center and Cardiovascular Research Institute (CARIM), the Netherlands (W.H.v.Z.).
Diederik W J DippelDepartment of Neurology, Erasmus MC University Medical Center, Rotterdam, Netherlands (D.W.J.D.).
Charles B L M MajoieDepartment of Radiology and Nuclear Medicine, Academic Medical Center, Amsterdam, the Netherlands (H.A.M., C.B.L.M.M.).
Wouter J SchonewilleDepartment of Neurology, St. Antonius Hospital, Nieuwegein, and University Medical Center Utrecht (W.J.S.).
Aad van der LugtDepartment of Radiology and Nuclear Medicine, Erasmus MC University Medical Center, Rotterdam, the Netherlands (A.v.d.L.).
Maarten LansbergStanford Stroke Center, Stanford University, CA (M.L., G.W.A.).
Gregory W AlbersStanford Stroke Center, Stanford University, CA (M.L., G.W.A.).
Paul SuetensMedical Imaging Research Center (MIRC), KU Leuven, Belgium (D.R., P.S.).ORCID 0000-0003-1301-0884
Robin LemmensDepartment of Neurology, University Hospitals Leuven, Belgium (A.W., R.L.).
Amsterdam UMC Location University of Amsterdam · NLErasmus MC · NLiMinds · BEStanford University · USChristensen Fund · USMaastricht University · NLMaastricht University Medical Centre · NLSt. Antonius Ziekenhuis · NLVIB-KU Leuven Center for Brain & Disease Research · BE

Funding

CTP to predict Response to recanalization in Ischemic Stroke Project (CRISP)R01NS075209 · NINDS · STANFORD UNIVERSITY · PI LANSBERG, MAARTEN G · 2011 to 2023
$6.0M
NINDS NIH HHS R01 NS075209
6 · The paper itself

Abstract

background and purposeComputed tomography perfusion imaging allows estimation of tissue status in patients with acute ischemic stroke. We aimed to improve prediction of the final infarct and individual infarct growth rates using a deep learning approach.

methodsWe trained a deep neural network to predict the final infarct volume in patients with acute stroke presenting with large vessel occlusions based on the native computed tomography perfusion images, time to reperfusion and reperfusion status in a derivation cohort (MR CLEAN trial [Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands]). The model was internally validated in a 5-fold cross-validation and externally in an independent dataset (CRISP study [CT Perfusion to Predict Response to Recanalization in Ischemic Stroke Project]). We calculated the mean absolute difference between the predictions of the deep learning model and the final infarct volume versus the mean absolute difference between computed tomography perfusion imaging processing by RAPID software (iSchemaView, Menlo Park, CA) and the final infarct volume. Next, we determined infarct growth rates for every patient.

resultsWe included 127 patients from the MR CLEAN (derivation) and 101 patients of the CRISP study (validation). The deep learning model improved final infarct volume prediction compared with the RAPID software in both the derivation, mean absolute difference 34.5 versus 52.4 mL, and validation cohort, 41.2 versus 52.4 mL (

conclusionsWe validated a deep learning-based method which improved final infarct volume estimations compared with classic computed tomography perfusion imaging processing. In addition, the deep learning model predicted individual infarct growth rates which could enable the introduction of tissue clocks during the management of acute stroke.

Indexed as

Perfusion ImagingAgedArterial Occlusive DiseasesCerebral InfarctionCohort StudiesDeep LearningFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedNeural Networks, ComputerPredictive Value of TestsReperfusionReproducibility of ResultsSoftwaredeep learninginfarctionischemic strokeperfusion imagingreperfusion

Identifiers

PMID34587794
PMCPMC8792202
OpenAlexW3201794595

What OpenQuestion holds

Textmetadata
LicenceTDM
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.