Evidence map›Paper›PMID 41614510›Full record

Observational studyEuropean stroke journal2026

Are lacunar infarcts associated with a "susceptibility vessel sign"? A 7-tesla magnetic resonance imaging study.

Sam J Neilson, Natasha E Fullerton, Sin Yee Foo, Stephen Makin, David Porter, Keith W Muir

Erratum issuedAbstract readObservational Study
In one paragraph

Observational study in European stroke journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Sam J NeilsonSchool of Cardiovascular & Metabolic Health, University of Glasgow, Glasgow, United Kingdom.
Natasha E FullertonNHS Greater Glasgow and Clyde, Department of Neuroradiology, Institute of Neurological Sciences, Glasgow, United Kingdom.
Sin Yee FooNHS Greater Glasgow and Clyde, Department of Neuroradiology, Institute of Neurological Sciences, Glasgow, United Kingdom.
Stephen MakinCentre for Rural Health, University of Aberdeen, Aberdeen, United Kingdom.
David PorterDepartment of Magnetic Resonance Imaging Physics, Centre for Cognitive Neuroimaging, University of Glasgow, Glasgow, United Kingdom.
Keith W MuirSchool of Cardiovascular & Metabolic Health, University of Glasgow, Glasgow, United Kingdom.

Funding

Academy of Medical Sciences SGL019\1094
6 · The paper itself

Abstract

introductionThe pathophysiological basis for lacunar stroke is uncertain. The susceptibility vessel sign (SVS) on magnetic resonance imaging (MRI) is associated with thrombotic large vessel occlusion and has been reported in association with lacunar infarcts using T2* imaging. We investigated the presence of a relevant SVS in acute lacunar stroke with susceptibility-weighted imaging (SWI) and time-of-flight MR angiography (TOF-MRA) at 7 Tesla (T). PATIENTS AND

methodsWe performed a single-centre prospective observational study in patients with small subcortical infarct confirmed on 1.5 or 3 T MRI. Additional 7 T MRI was acquired and raters independently reviewed 7 T SWI and TOF-MRA sequences blinded to clinical data. Presence of an SVS and any associated occluded vessels were recorded. A SVS was considered present if reported by two or more raters in the relevant hemisphere with agreement confirmed at consensus review.

resultsTwenty people (10 male, 10 female), with median age 67.5 [interquartile range (IQR) 64-81] years and median National Institutes of Health Stroke Scale 3 (IQR 2-4.75), underwent 7 T MRI. Possible SVS was visualized in 7 of 20 scans (35%) on SWI, with 4 considered highly likely (20%). TOF-MRA review showed an occluded small vessel proximal to the infarct in 1 of 20 patients (5%). This was not associated with a positive SVS on SWI.

conclusionA possible SVS was observed in up to 7 of 20 (35%) people with recent small subcortical infarcts, but anatomically related vessel occlusion was not confirmed using TOF-MRA. Diagnosis of small vessel SVS appears subjective and confirmation with 3-dimensional vascular imaging may increase reliability.

Indexed as

Magnetic Resonance AngiographyMagnetic Resonance ImagingStroke, LacunarAgedAged, 80 and overFemaleHumansMaleMiddle AgedProspective Studieslacunar strokeMRISmall vessel diseasestroke

Identifiers

PMID41614510
PMCPMC12866648

What Socratic holds

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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 Socratic graph.