Evidence map›Paper›PMID 31092162›Full record

ArticleStroke2019

Artificial Neural Network Computer Tomography Perfusion Prediction of Ischemic Core.

Aimen S Kasasbeh, Søren Christensen, Mark W Parsons, Bruce Campbell, Gregory W Albers, Maarten G Lansberg

Abstract read
In one paragraph

Article in Stroke, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

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

  1. Pooled it
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  4. Review
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  8. Review
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  10. Article
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  12. Artificial Intelligence and Acute Stroke Imaging.AJNR. American journal of neuroradiology · 2021
    Review
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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

6 authors.

Aimen S KasasbehFrom the Department of Radiology, University of Vermont, Burlington (A.S.K.).
Søren ChristensenDepartment of Neurology and Neurological Sciences, Stanford Stroke Center, Stanford University Medical Center, CA (S.C., G.W.A., M.G.L.).
Mark W ParsonsDepartment of Neurology, John Hunter Hospital, University of Newcastle, Australia (M.W.P.).
Bruce CampbellDepartment of Medicine and Neurology, Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne, Parkville, Australia (B.C.).
Gregory W AlbersDepartment of Neurology and Neurological Sciences, Stanford Stroke Center, Stanford University Medical Center, CA (S.C., G.W.A., M.G.L.).
Maarten G LansbergDepartment of Neurology and Neurological Sciences, Stanford Stroke Center, Stanford University Medical Center, CA (S.C., G.W.A., M.G.L.).

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
Stanford University Regional Coordinating Stroke Center for the NINDS Stroke TriaU10NS086487 · NINDS · STANFORD UNIVERSITY · PI ALBERS, GREGORY W · 2013 to 2017
$1.9M
NINDS NIH HHS R01 NS075209NINDS NIH HHS U10 NS086487
6 · The paper itself

Abstract

Background and Purpose- Computed tomography perfusion (CTP) is a useful tool in the evaluation of acute ischemic stroke, where it can provide an estimate of the ischemic core and the ischemic penumbra. The optimal CTP parameters to identify the ischemic core remain undetermined. Methods- We used artificial neural networks (ANNs) to optimally predict the ischemic core in acute stroke patients, using diffusion-weighted imaging as the gold standard. We first designed an ANN based on CTP data alone and next designed an ANN based on clinical and CTP data. Results- The ANN based on CTP data predicted the ischemic core with a mean absolute error of 13.8 mL (SD, 13.6 mL) compared with diffusion-weighted imaging. The area under the receiver operator characteristic curve was 0.85. At the optimal threshold, the sensitivity for predicting the ischemic core was 0.90 and the specificity was 0.62. Combining CTP data with clinical data available at time of presentation resulted in the same mean absolute error (13.8 mL) but lower SD (12.4 mL). The area under the curve, sensitivity, and specificity were 0.87, 0.91, and 0.65, respectively. The maximal Dice coefficient was 0.48 in the ANN based on CTP data exclusively. Conclusions- An ANN that integrates clinical and CTP data predicts the ischemic core with accuracy.

Indexed as

Diffusion Magnetic Resonance ImagingNeural Networks, ComputerTomography, X-Ray ComputedAgedBrain IschemiaFemaleHumansMaleMiddle AgedProspective StudiesStrokebrainCT perfusionmachine learningsensitivity and specificitystroke, ischemic

Identifiers

PMID31092162
PMCPMC6538437

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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.