Evidence mapPaperPMID 22367991Full record

ArticleAnnals of neurology2012

Middle cerebral artery intraplaque hemorrhage: prevalence and clinical relevance.

Wei-Hai Xu, Ming-Li Li, Shan Gao, Jun Ni, Ming Yao, Li-Xin Zhou, Bin Peng, Feng Feng, Zheng-Yu Jin, Li-Ying Cui

3 registry-linked trialsAbstract read
PubMed Publisher
In one paragraph

Article in Annals of neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 101 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 3 pooled it
4.5field-weighted citation impact, top 5% 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.

NCT05001984 phase2active not recruitingstarted 2021, after this paper: background citation

Trial of PCSK9 Inhibition in Patients with Acute Stroke and Symptomatic Intracranial Atherosclerosis - a Prospective, Randomized, Open-label, Blinded End-point Study with High-resolution MR Vessel Wall Imaging

Ran2021Enrolled60Registered outcomes11Posted comparisons0ConditionsAcute Ischemic Stroke, ICAS - Intracranial Atherosclerosis, Intracranial AtherosclerosisArmsAlirocumab
Open the trial in the graph
NCT02485275 completednot on this mapstarted 2015, after this paper: background citation

Stroke Imaging Package Study

Typeobservational_patient_registrySponsorWei-Hai XuRan2015 to 2017Enrolled949ConditionsAcute Ischemic Stroke, Intracranial Arteriosclerosis, Cerebral Small Vessel Diseases
NCT03719820 unknown statusnot on this mapstarted 2018, after this paper: background citation

Stroke Imaging Package Study of Intracranial Atherosclerosis

Typeobservational_patient_registrySponsorWei-Hai XuRan2018 to 2021Enrolled550ConditionsAcute Ischemic Stroke AIS, Intracranial Atherosclerosis ICASArmsaggressive medical management
3 · Its place in the literature

Who cites it

101 citing papers in PubMed, 3 syntheses or guidelines pooled it, 172 citations in OpenAlex.

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  12. 7T-high resolution MRI-derived radiomic analysis for the identification of symptomatic intracranial atherosclerotic plaques.Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences · 2024
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  16. Vessel Wall Imaging of Intracranial Arteries: Fundamentals and Clinical Applications.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2023
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41 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Wei-Hai XuDepartment of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China. xuwhpumch@yahoo.com.cn
Ming-Li Li
Shan Gao
Jun Ni
Ming Yao
Li-Xin Zhou
Bin Peng
Feng Feng
Zheng-Yu Jin
Li-Ying Cui
Chinese Academy of Medical Sciences & Peking Union Medical College · CNPeking Union Medical College Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveLittle is known about the composition of middle cerebral artery (MCA) plaques and how they relate to clinical status. Using high-resolution magnetic resonance imaging (HR-MRI), we aimed to examine the occurrence of high signal on T1-weighted fat-suppressed images (HST1) of MCA plaques, which are highly suggestive of fresh or recent intraplaque hemorrhage.

methodsWe retrospectively analyzed the HR-MRI and clinical data of 107 adult patients with high-grade (>70%) MCA stenosis. On HR-MRI, HST1 within an MCA plaque was defined as an area with an intensity >150% of the signal of adjacent muscles. The relationship between HST1 and clinical presentations was analyzed.

resultsA total of 109 stenotic MCAs (46 symptomatic and 63 asymptomatic) on 981 image slices were analyzed. HST1 was revealed on HR-MRI in 11 vessels (10.1%, 9 symptomatic and 2 asymptomatic). The occurrence rate of HST1 between symptomatic and asymptomatic MCAs was significantly different (19.6% vs 3.2%, p = 0.01).

interpretationHST1 within MCA plaque on HR-MRI is associated with ipsilateral stroke. Our results provide new insight into the vascular biology of MCA atherosclerosis.

Indexed as

Constriction, PathologicHemorrhageHumansMagnetic Resonance ImagingMiddle AgedMiddle Cerebral ArteryPlaque, AtheroscleroticPrevalenceRetrospective StudiesSeverity of Illness Index

Identifiers

PMID22367991
OpenAlexW2145899334

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

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 Socratic graph.