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Updated: Aug 15, 2026

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
Published on: February 19, 2021
Overdiagnosis of multiple sclerosis and magnetic resonance imaging criteria
Jessica M Nielsen1, Tijmen Korteweg, Frederik Barkhof
1Department of Neurology, VU University Medical Centre, Amsterdam, Netherlands. jm.nielsen@vumc.nl
Abstract:
Retrospectively, we assessed the specificity of two proposed magnetic resonance imaging (MRI) criteria for multiple sclerosis (MS) in patients suspected to have MS but who ultimately receive another diagnosis. Brain MRIs of 28 patients mixed with 28 MRIs of MS patients from the same cohort of 377 consecutively referred patients were scored by a neuroradiologist masked to the final diagnosis. The criteria for dissemination in space incorporated in the McDonald International Panel showed good specificity (89%). However, the more sensitive criteria proposed by a Subcommittee of the American Academy of Neurology resulted in a lower specificity (29%), indicating an increased risk of a false-positive diagnosis.
Insights
The McDonald criteria for multiple sclerosis (MS) showed high specificity (89%) in diagnosing MS. However, American Academy of Neurology criteria were less specific (29%), increasing the risk of misdiagnosis in patients with suspected MS.
Area of Science:
- Neurology
- Radiology
- Medical Diagnostics
Background:
- Accurate diagnosis of multiple sclerosis (MS) is crucial for timely treatment.
- Magnetic resonance imaging (MRI) plays a key role in MS diagnosis.
- Evaluating diagnostic criteria for MS is essential to minimize misdiagnosis.
Purpose of the Study:
- To assess the specificity of two magnetic resonance imaging (MRI) criteria for diagnosing multiple sclerosis (MS).
- To compare the diagnostic accuracy of the McDonald International Panel criteria versus criteria proposed by an American Academy of Neurology Subcommittee.
- To identify potential risks of false-positive diagnoses in patients suspected of having MS.
Main Methods:
- Retrospective analysis of brain MRIs from 377 consecutively referred patients.
- Included 28 patients with confirmed MS and 28 patients with other neurological diagnoses.
- MRIs were scored by a neuroradiologist masked to the final diagnosis using two sets of criteria.
Main Results:
- The McDonald International Panel criteria demonstrated high specificity (89%) for diagnosing MS.
- The American Academy of Neurology Subcommittee criteria exhibited lower specificity (29%).
- The less specific criteria were associated with a higher risk of false-positive MS diagnoses.
Conclusions:
- The McDonald criteria are specific for diagnosing MS in patients with suspected disease.
- The American Academy of Neurology Subcommittee criteria may lead to overdiagnosis of MS.
- Careful application of diagnostic criteria is necessary to ensure accurate MS diagnosis.
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Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...

