Evidence map›Paper›PMID 34327578›Full record

SynthesisEuropean radiology2022

Diagnostic accuracy of dual-energy computed tomography to differentiate intracerebral hemorrhage from contrast extravasation after endovascular thrombectomy for acute ischemic stroke: systematic review and meta-analysis.

Shijian Chen, Jian Zhang, Xuemei Quan, Yiju Xie, Xuhui Deng, Yueling Zhang, Shengliang Shi, Zhijian Liang

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European radiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 4 pooled it
1.4field-weighted citation impact, top 21% 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

14 citing papers in PubMed, 4 syntheses or guidelines pooled it, 26 citations in OpenAlex.

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  10. The pioneering past and cutting-edge future of interventional neuroradiology.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2024
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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.

Shijian ChenDepartment of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Jian ZhangDepartment of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Xuemei QuanDepartment of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Yiju XieDepartment of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Xuhui DengDepartment of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Yueling ZhangDepartment of Neurology, Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Shengliang ShiDepartment of Neurology, Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Zhijian LiangDepartment of Neurology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China. liangzhijian@gxmu.edu.cn.ORCID http://orcid.org/0000-0001-6547-3608
Guangxi Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo assess whether dual-energy computed tomography (DECT), using conventional computed tomography or magnetic resonance imaging as a reference standard, is sufficiently accurate to differentiate intracerebral hemorrhage from contrast extravasation after endovascular thrombectomy for acute ischemic stroke.

methodsOn January 20, 2021, we searched the PubMed Medline, Embase, Web of Science, and Cochrane Library databases. QUADAS-2 was used to assess the risk of bias and applicability. Meta-analyses were performed using a bivariate random-effects model. To explore sources of heterogeneity, meta-regression analyses were performed. Deeks' funnel plot asymmetry test was used to assess publication bias.

resultsA total of 7 studies (269 patients, 269 focal areas) were included. The pooled mean sensitivity, specificity, and accuracy of DECT in identifying intracerebral hemorrhage from contrast extravasation after mechanical thrombectomy for acute ischemic stroke were 0.77 (95% confidence interval (CI) 0.29 to 0.96), 1 (95% CI 0.86 to 1), and 0.99 (95% CI 0.98 to 1), respectively. This evidence was of moderate certainty due to the risk of bias. Higgin's I-squared for study heterogeneity was observed for the pooled sensitivity (I

conclusionDECT shows excellent accuracy and specificity in differentiating intracerebral hemorrhage from contrast extravasation after endovascular thrombectomy for acute ischemic stroke. Nevertheless, there was substantial and moderate heterogeneity among the studies. Future large-scale, prospective cohort studies are warranted to validate our findings. KEY POINTS: • Dual-energy computed tomography shows excellent accuracy and specificity in differentiating intracerebral hemorrhage from contrast extravasation after endovascular thrombectomy for acute ischemic stroke. • Via meta-regression analysis, we found various possible covariates, including the publication date, image analysis, index test time, time of follow-up imaging, and reference standard judgment, that had an important effect on the heterogeneity. • There were no concerns regarding applicability in any of the included studies.

Indexed as

Brain IschemiaIschemic StrokeStrokeCerebral HemorrhageHumansMagnetic Resonance ImagingProspective StudiesThrombectomyCerebral hemorrhageIschemic strokeSensitivity and specificityStrokeThrombectomy

Identifiers

PMID34327578
OpenAlexW3185254927

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.