Evidence map›Paper›PMID 31709118›Full record

ArticleStroke and vascular neurology2019

Perfusion and plaque evaluation to predict recurrent stroke in symptomatic middle cerebral artery stenosis.

Jinhao Lyu, Ning Ma, Chenglin Tian, Feng Xu, Hang Shao, Xin Zhou, Lin Ma, Xin Lou

Open access · goldAbstract read
In one paragraph

Article in Stroke and vascular neurology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

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  18. Characteristics of symptomatic plaque on high-resolution magnetic resonance imaging and its relationship with the occurrence and recurrence of ischemic stroke.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
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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 4 institutions in 1 country.

Jinhao LyuDepartment of Radiology, Chinese PLA General Hospital, Beijing, China.ORCID 0000-0002-5177-7640
Ning MaDepartment of Interventional Neurology, Beijing Tiantan Hospital, Capital Medical University, China National Clinical Research Center for Neurological Diseases, Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.
Chenglin TianDepartment of Neurology, Chinese PLA General Hospital, Beijing, China.ORCID 0000-0002-2455-6930
Feng XuAutomation Department, Tsinghua University, Beijing, China.
Hang ShaoAutomation Department, Tsinghua University, Beijing, China.
Xin ZhouState Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, Hubei, China.
Lin MaDepartment of Radiology, Chinese PLA General Hospital, Beijing, China.
Xin LouDepartment of Radiology, Chinese PLA General Hospital, Beijing, China.
Chinese PLA General Hospital · CNTsinghua University · CNCapital Medical University · CNChinese Academy of Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and purpose: We investigated the baseline demographics of patients with severe unilateral atherosclerotic stenosis of the middle cerebral artery (MCA) using multimodal MRI and evaluated the haemodynamic impairments and plaque characteristics of patients who had a recurrent stroke. Materials and methods: We retrospectively recruited consecutive patients with severe unilateral atherosclerotic MCA stenosis who underwent arterial spin labelling (ASL) with postlabelling delay (PLD) of 1.5 and 2.5 s, and vessel wall MRI. For each PLD, cerebral blood flow (CBF) maps were generated. Hypoperfusion volume ratio (HVR) from 2 PLD CBF was calculated. An HVR value ≥50% was considered as severe HVR. Plaque areas, plaque burden, plaque length and remodelling index were measured. Plaque enhancement at maximal lumen narrowing site were graded. Baseline clinical and imaging characteristics were compared between patients with (event+) and without (event-) 1 year ischaemic events. Results: Forty-three patients (47.23±12.15 years; 28 men) were enrolled in this study. Seven patients had an HVR ≥50%. During the 1-year follow-up, 7 patients had experienced a recurrent stroke. HVR were significantly higher in the event+ than event- (53.17%±29.82% vs 16.9%±15.57%, p=0.0002), whereas no significant difference was detected in plaque areas, plaque burden, remodelling index, plaque length and plaque enhancement grade. The multivariable analysis revealed that a severe HVR was significantly associated with a recurrent stroke (Odds ratio=12.93, 95% confidence interval 1.57 to 106.24, p=0.017) after adjusted by hypertension and smoking. Conclusion: HVR obtained from two PLD ASL may be a useful imaging predictor of recurrent stroke.

Indexed as

HemodynamicsMagnetic Resonance ImagingPerfusion ImagingPlaque, AtheroscleroticAdultCerebrovascular CirculationFemaleHumansInfarction, Middle Cerebral ArteryIschemic StrokeMaleMiddle AgedPredictive Value of TestsPrognosisRecurrenceRetrospective Studiesarterial spin labelinghigh-resolution mriintracranial atherosclerotic diseasepost labeling delaystroke mechanism

Identifiers

PMID31709118
PMCPMC6812634
OpenAlexW2949394977

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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.