Evidence map›Paper›PMID 42667097›Full record

ArticleNeuroimage. Reports2026

Regional cerebral FDG-PET metabolic patterns across severity of extracranial internal carotid artery stenosis.

Mahmoud Afia, Sai Krishna Vallamchetla, Rafael T Tatit, Baher Boktor, Manoj K Jain, Jason R Young, Rabih G Tawk, Christian Lachner, Gregory S Day, James F Meschia and 1 more

Abstract read
In one paragraph

Article in Neuroimage. Reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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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

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

11 authors.

Mahmoud AfiaDepartment of Neurology, Mayo Clinic, Jacksonville, FL, USA.
Sai Krishna VallamchetlaDepartment of Neurology, Mayo Clinic, Jacksonville, FL, USA.
Rafael T TatitDepartment of Neurosurgery, Mayo Clinic, Jacksonville, FL, USA.
Baher BoktorDepartment of Neurology, Mayo Clinic, Jacksonville, FL, USA.
Manoj K JainDepartment of Nuclear Medicine, Mayo Clinic, Jacksonville, FL, USA.
Jason R YoungDepartment of Nuclear Medicine, Mayo Clinic, Jacksonville, FL, USA.
Rabih G TawkDepartment of Neurosurgery, Mayo Clinic, Jacksonville, FL, USA.
Christian LachnerDepartment of Neurology, Mayo Clinic, Jacksonville, FL, USA.
Gregory S DayDepartment of Neurology, Mayo Clinic, Jacksonville, FL, USA.
James F MeschiaDepartment of Neurology, Mayo Clinic, Jacksonville, FL, USA.
Michelle P LinDepartment of Neurology, Mayo Clinic, Jacksonville, FL, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Carotid stenosis is associated with stroke and cognitive impairment. Whether cerebral glucose hypometabolism, a marker for neurodegeneration, mediates the association between carotid stenosis and cognitive decline remains unclear. Objectives: To investigate whether carotid stenosis is associated with reduced cerebral glucose metabolism measured by Methods: We conducted a cross-sectional study of patients evaluated at Mayo Clinic (2010-2024) who underwent extracranial carotid imaging and brain Results: Among 84 patients, stenosis was mild in 86.9%, moderate in 4.8%, and severe in 8.3%; 44% underwent FDG-PET for clinical indications, mostly for suspected cognitive impairment. Increasing stenosis severity was associated with numerically lower metabolism in ipsilateral anterior circulation regions, without statistical significance. Adjusted odds of ipsilateral sensorimotor hypometabolism increased with stenosis severity (moderate: OR 2.90 [95%CI, 0.31-27.1]; severe: OR 5.56 [95% CI, 0.57-54.2]; P = 0.095), with attenuated associations in posterior circulation regions. Conclusion: FDG-PET demonstrated a numerical association between carotid stenosis severity and reduced cerebral glucose metabolism, but this did not reach statistical significance. Larger studies with greater representation of high-grade stenosis are needed.

Indexed as

Brain hemodynamicsCarotid artery stenosisCerebral glucose metabolismFDG-PETHypometabolism

Identifiers

PMID42667097
PMCPMC13524481

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