Diagnostic yield of emergency MRI in non-traumatic headache View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2022-08-27

AUTHORS

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

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. More... »

PAGES

1-8

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s00234-022-03044-2

DOI

http://dx.doi.org/10.1007/s00234-022-03044-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1150551848

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/36029327


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