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Table 2: Patients with discordant results between 1.5T and 3T according to Barkhof MR imaging criteria
Patient No. Clinical Presentation Number of Fulfilled MR Imaging Criteria Additional MR Imaging Criterion
1.5T 3T
1 Optic neuritis 0 1 ≥1 juxtacortical lesion
2 Optic neuritis 0 1 ≥1 infratentorial lesion
3 Brain stem syndrome 1 2 ≥9 T2 hyperintense lesions
4 Brain stem syndrome 1 2 ≥9 T2 hyperintense lesions
5 Brain stem syndrome 1 2 ≥1 juxtacortical lesion
6 Optic neuritis 1 2 ≥9 T2 hyperintense lesions
7 Optic neuritis 1 2 ≥1 infratentorial lesion
8^* Optic neuritis 2 3 ≥1 infratentorial lesion
9^* Optic neuritis 2 3 ≥9 T2 hyperintense lesions
10 Optic neuritis 3 4 ≥3 periventricular lesions
11 Spinal cord syndrome 3 4 ≥1 infratentorial lesion
* Patient fulfilled 3 criteria instead of 2 at 3T, and they were therefore diagnosed of having lesion dissemination in space according to McDonald diagnostic criteria.