Evidence map›Paper›PMID 36029327›Full record

ArticleNeuroradiology2023

Diagnostic yield of emergency MRI in non-traumatic headache.

Tatu Happonen, Mikko Nyman, Pauli Ylikotila, Harri Merisaari, Kimmo Mattila, Jussi Hirvonen

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Neuroradiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

7 citing papers in PubMed, 7 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Tatu HapponenDepartment of Radiology, Turku University Hospital and University of Turku, Kiinamyllynkatu 4-8, N20520, Turku, Finland.
Mikko NymanDepartment of Radiology, Turku University Hospital and University of Turku, Kiinamyllynkatu 4-8, N20520, Turku, Finland.
Pauli YlikotilaNeurocenter, Turku University Hospital and University of Turku, Turku, Finland.
Harri MerisaariDepartment of Radiology, Turku University Hospital and University of Turku, Kiinamyllynkatu 4-8, N20520, Turku, Finland.
Kimmo MattilaDepartment of Radiology, Turku University Hospital and University of Turku, Kiinamyllynkatu 4-8, N20520, Turku, Finland.
Jussi HirvonenDepartment of Radiology, Turku University Hospital and University of Turku, Kiinamyllynkatu 4-8, N20520, Turku, Finland. jussi.hirvonen@utu.fi.ORCID http://orcid.org/0000-0002-0368-3746
University of Turku · FITampere University of Applied Sciences · FI

Funding

Suomen Kulttuurirahasto #00220281
6 · The paper itself

Abstract

purposeNon-traumatic headache is one of the most common neurological complaints in emergency departments. A relatively low diagnostic yield of magnetic resonance imaging (MRI) among outpatients has been previously reported, but studies of emergency patients are lacking. We sought to determine the diagnostic yield of emergency MRI among outpatients presenting to the emergency department with non-traumatic headache.

methodsIn this retrospective cohort study, we analyzed emergency MRI referrals in a tertiary hospital for non-traumatic headache over a five-year period. We recorded patient characteristics, relevant clinical information from the referrals, and imaging outcomes.

resultsIn total, 696 emergency patients with non-traumatic headache underwent MRI, most within 24 h of presentation. Significant findings related to headache were found in 136 (20%) patients, and incidental findings in 22% of patients. In a multivariate model, the predisposing factors of the significant findings were age, smoking, nausea, and signs/symptoms of infection. The protective factors were numbness and history of migraine. A predictive clinical score reached only moderate performance.

conclusionAlthough emergency MRI shows headache-related findings in one in five patients, accurate prediction modeling remains a challenge, even with statistically significant predictors and a large sample size.

Indexed as

HeadacheMigraine DisordersEmergency Service, HospitalHumansMagnetic Resonance ImagingRetrospective StudiesDiagnostic yieldEmergency imagingHeadacheMagnetic resonance imaging

Identifiers

PMID36029327
PMCPMC9816281
OpenAlexW4293364419

What OpenQuestion holds

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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.