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Updated: Apr 30, 2026
Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
Published on: February 19, 2021
Comparison of brain 3.0-T with 1.5-T MRI in patients with multiple sclerosis: a 6-month follow-up study
Hiroshi Kataoka1, Takao Kiriyama1, Toshiaki Taoka2
1Department of Neurology, Nara Medical University, Kashihara, Nara, Japan.
Objectives:
The 2010 revisions to the McDonald criteria for the diagnosis of multiple sclerosis (MS) were recently published. One objective of the revision was to simplify the MRI criteria. The MRI criteria do not specify magnetic field strength. We studied whether there was any difference in diagnosis between brain 3.0-T and 1.5-T MRI according to the 2010 revisions of the McDonald criteria.
Patients And Methods:
We prospectively studied brain 3.0-T and 1.5-T MRI in 22 patients with MS. 1.5-T MRI was performed 24h after 3.0-T MRI, and the scanning protocol included contiguous axial sections of T2-weighted images (T2WI), T1WI, and enhanced T1WI. These two different MRI and neurological assessments were scheduled to be repeated 3 and 6 months after study entry.
Results:
The regions where MS lesions were better visualized on 3.0-T MRI tended to be in deep white matter on T2WI. Dissemination of lesions in space and time was similar for 3.0-T and 1.5-T MRI.
Conclusion:
Our study found no difference between brain 3.0-T and 1.5-T MRI. There was no apparent impact of brain 3.0-T MRI on the diagnosis of MS according to the 2010 version of the MRI criteria.
Insights
Higher field strength MRI (3.0-T) showed no diagnostic advantage over 1.5-T MRI for multiple sclerosis (MS) diagnosis using the 2010 McDonald criteria. Lesion visualization was similar between the two magnetic field strengths.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- The 2010 McDonald criteria revisions aimed to simplify multiple sclerosis (MS) diagnosis using MRI.
- Current MRI criteria for MS do not specify magnetic field strength.
Purpose of the Study:
- To investigate diagnostic differences between 3.0-Tesla (T) and 1.5-T MRI for multiple sclerosis (MS) using the 2010 McDonald criteria.
- To assess the impact of magnetic field strength on MS diagnosis.
Main Methods:
- Prospective study of 22 MS patients comparing 3.0-T and 1.5-T brain MRI.
- MRI scans included T2-weighted, T1-weighted, and enhanced T1-weighted sequences.
- Neurological assessments were repeated at 3 and 6 months.
Main Results:
- 3.0-T MRI showed a tendency for better visualization of MS lesions in deep white matter on T2-weighted images.
- Dissemination of lesions in space and time was comparable between 3.0-T and 1.5-T MRI.
Conclusions:
- No significant difference in the diagnosis of MS was observed between 3.0-T and 1.5-T MRI.
- The use of 3.0-T MRI did not appear to impact the diagnostic accuracy for MS based on the 2010 McDonald criteria.
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