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Updated: Jun 4, 2026
Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
Published on: February 19, 2021
Ultra-high-field imaging distinguishes MS lesions from asymptomatic white matter lesions
E C Tallantyre1, J E Dixon, I Donaldson
1Department of Clinical Neurology, Nottingham University Hospital NHS Trust, Nottingham, NG7 2UH, UK.
Objectives:
To investigate whether multiple sclerosis (MS) and non-MS white matter brain lesions can be distinguished by their appearance on 7 T T2*-weighted MRI.
Methods:
This was an observational study of 28 patients with MS and 17 patients with cerebral white matter lesions who did not have MS. Subjects were imaged using 7 T T2*-weighted imaging. White matter lesions were identified and analyzed for volume, location, and perivenous appearance.
Results:
Out of 901 lesions identified in patients with MS, 80% were perivenous. In comparison, 19% of 428 lesions identified in patients without MS had a perivenous appearance. Seven-Tesla T2*-weighted MRI reliably distinguished all patients with clinically definite MS (>40% lesions appeared perivenous) from those without clinical MS (<40% lesions appeared perivenous). Perivenous lesion appearance was more predictive of MS (odds ratio [OR] 14, p < 0.001) than subcortical or periventricular lesion location (OR 4.5, p < 0.001, and OR 2.4, p = 0.009). Perivenous lesion appearance was observed with a similar frequency in patients with clinically isolated syndrome of demyelination and in early (gadolinium-enhancing) MS lesions.
Conclusion:
Perivenous lesion location on 7 T T2*-weighted imaging is predictive of the presence of demyelination. Optimization of this imaging technique at lower magnetic resonance field strengths would offer benefit for the diagnosis of MS.
Insights
High-resolution MRI can distinguish multiple sclerosis (MS) brain lesions from other white matter lesions. Perivenous lesion appearance on 7 Tesla T2*-weighted imaging is a key indicator for MS diagnosis.
Area of Science:
- Neuroimaging
- Radiology
- Neurology
Background:
- Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system.
- Differentiating MS lesions from other white matter lesions is crucial for accurate diagnosis and treatment.
- Advanced magnetic resonance imaging (MRI) techniques may improve lesion characterization.
Purpose of the Study:
- To determine if 7 Tesla (7 T) T2*-weighted MRI can differentiate between MS and non-MS white matter brain lesions.
- To assess the predictive value of lesion appearance, specifically perivenous location, for MS diagnosis.
Main Methods:
- Observational study involving 28 patients with MS and 17 patients without MS.
- All subjects underwent 7 T T2*-weighted MRI.
- White matter lesions were identified and analyzed for volume, location, and perivenous characteristics.
Main Results:
- A significantly higher proportion of lesions in MS patients (80%) appeared perivenous compared to non-MS patients (19%).
- 7 T T2*-weighted MRI reliably distinguished between MS and non-MS groups based on the percentage of perivenous lesions.
- Perivenous lesion appearance was a stronger predictor of MS than lesion location (subcortical or periventricular).
- Perivenous lesions were observed similarly in clinically isolated syndrome and early MS.
Conclusions:
- Perivenous lesion location on 7 T T2*-weighted imaging is predictive of demyelination and the presence of MS.
- This imaging technique holds promise for improving MS diagnosis.
- Further optimization for lower field strengths could enhance diagnostic accessibility.
