Evidence map›Paper›PMID 32660817›Full record

ArticleClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2020

A standardized nomenclature for spectrogram EEG patterns: Inter-rater agreement and correspondence with common intensive care unit EEG patterns.

Sahar F Zafar, Edilberto Amorim, Craig A Williamsom, Jin Jing, Emily J Gilmore, Hiba A Haider, Christa Swisher, Aaron Struck, Eric S Rosenthal, Marcus Ng and 3 more

Abstract read
In one paragraph

Article in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

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0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

The trial behind it

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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

Who cites it

12 citing papers in PubMed.

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  4. Using artificial intelligence to optimize anti-seizure treatment and EEG-guided decisions in severe brain injury.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors.

Sahar F ZafarMassachusetts General Hospital, Department of Neurology, Boston, MA, USA. Electronic address: sfzafar@mgh.harvard.edu.
Edilberto AmorimMassachusetts General Hospital, Department of Neurology, Boston, MA, USA; University of California, Department of Neurology, San Francisco, CA, USA.
Craig A WilliamsomUniversity of Michigan, Department of Neurosurgery and Neurology, Ann Arbor, MI, USA.
Jin JingMassachusetts General Hospital, Department of Neurology, Boston, MA, USA.
Emily J GilmoreYale School of Medicine, Department of Neurology, New Haven, CT, USA.
Hiba A HaiderEmory University School of Medicine, Department of Neurology, Atlanta, GA, USA.
Christa SwisherDuke University School of Medicine, Department of Neurology, Durham, NC, USA.
Aaron StruckUniversity of Wisconsin, Department of Neurology, Madison, WI, USA.
Eric S RosenthalMassachusetts General Hospital, Department of Neurology, Boston, MA, USA.
Marcus NgUniversity of Manitoba, Winnipeg, Canada, USA.
Sarah SchmittUniversity of South Carolina, Department of Neurology, Charleston, SC, USA.
Jong W LeeDepartment of Neurology, Brigham and Women's Hospital, Boston, MA, USA.
M Brandon WestoverMassachusetts General Hospital, Department of Neurology, Boston, MA, USA.

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Multimodal Network Connectivity Architecture (MOCA) of the Brain and its Role in the Recovery of Consciousness in Comatose Cardiac Arrest PatientsR01NS102574 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI GREER, DAVID MATTHEW, WU, ONA · 2018 to 2022
$3.4M
Investigation of Sleep in the Intensive Care Unit (ICU-SLEEP)R01NS102190 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI WESTOVER, MICHAEL BRANDON · 2018 to 2022
$3.2M
Big Data and Deep Learning for the Interictal-Ictal-Injury ContiuumR01NS107291 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI WESTOVER, MICHAEL BRANDON · 2018 to 2022
$2.8M
Real-Time Prediction of Delayed Cerebral Ischemia after Subarachnoid HemorrhageK23NS105950 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI ROSENTHAL, ERIC S. · 2018 to 2022
$1.0M
Optimizing anti-epileptic drug treatment in acute brain injuryK23NS114201 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI ZAFAR, SAHAR F · 2019 to 2023
$1.0M
NCATS NIH HHS UL1 TR001863NINDS NIH HHS K23 NS105950NINDS NIH HHS K23 NS114201NINDS NIH HHS R01 NS102190NINDS NIH HHS R01 NS102574NINDS NIH HHS R01 NS107291
6 · The paper itself

Abstract

objectiveTo determine the inter-rater agreement (IRA) of a standardized nomenclature for EEG spectrogram patterns, and to estimate the probability distribution of ictal-interictal continuum (IIC) patterns vs. other EEG patterns within each category in this nomenclature.

methodsWe defined seven spectrogram categories: "Solid Flames", "Irregular Flames", "Broadband-monotonous", "Narrowband-monotonous", "Stripes", "Low power", and "Artifact". Ten electroencephalographers scored 115 spectrograms and the corresponding raw EEG samples. Gwet's agreement coefficient was used to calculate IRA.

resultsSolid Flames represented seizures or IIC patterns 69.4% of the time. Irregular Flames represented seizures or IIC patterns 38.7% of the time. Broadband-monotonous primarily corresponded with seizures or IIC (54.3%) and Narrowband-monotonous with focal or generalized slowing (43.8%). Stripes were associated with burst-suppression (37.2%) and generalized suppression (34.4%). Low Power category was associated with generalized suppression (94%). There was "near perfect" agreement for Solid Flames (κ = 94.36), Low power (κ = 92.61), and Artifact (κ = 93.72). There was "substantial agreement" for all other categories (κ = 74.65-79.49).

conclusionsThis EEG spectrogram nomenclature has high IRA among electroencephalographers. SIGNIFICANCE: The nomenclature can be a useful tool for EEG screening. Future studies are needed to determine if using this nomenclature shortens time to IIC identification, and how best to use it in practice to reduce time to intervention.

Indexed as

ElectroencephalographyBrainHumansIntensive Care UnitsReference StandardsSeizuresTerminology as TopicContinuous EEG monitoringIIC patternsInter-rater agreementQuantitative EEG nomenclatureSeizuresSpectrograms

Identifiers

PMID32660817
PMCPMC7461156

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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.