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Table 1: Patient demographics and MRI characteristics
Characteristics Value
Total sample, n 20
Age, median (IQR) 32.5 (28−40)
Sex, n (%) 
 Female 16 (80)
 Male 4 (20)
Median time interval between pMRI and cMRI in days, median (IQR) 7 (3.5−12.5)
Findings on pMRI 
 PV lesions, n (%) 8 (40%)
 JC lesions, n (%) 4 (20%)
 IT lesions, n (%) 3 (15%)
 DIS, n (%) 5 (25%)
 Largest lesion dimension, mm (mean ± SD) 10.4 ± 3.1
 Smallest lesion dimension, mm (mean ± SD) 5.3 ± 1.0
Findings on cMRI 
 PV lesions, n (%) 10 (50%)
 JC lesions, n (%) 7 (35%)
 IT lesions, n (%) 8 (40%)
 DIS, n (%) 9 (45%)
 Largest lesion dimension, mm (mean ± SD) 8.4 ± 4.0
 Smallest lesion dimension, mm (mean ± SD) 3.2 ± 0.9
Note:—SD indicates standard deviation.

Characteristics	Value
Total sample, n	20
Age, median (IQR)	32.5 (28−40)
Sex, n (%)
Female	16 (80)
Male	4 (20)
Median time interval between pMRI and cMRI in days, median (IQR)	7 (3.5−12.5)
Findings on pMRI
PV lesions, n (%)	8 (40%)
JC lesions, n (%)	4 (20%)
IT lesions, n (%)	3 (15%)
DIS, n (%)	5 (25%)
Largest lesion dimension, mm (mean ± SD)	10.4 ± 3.1
Smallest lesion dimension, mm (mean ± SD)	5.3 ± 1.0
Findings on cMRI
PV lesions, n (%)	10 (50%)
JC lesions, n (%)	7 (35%)
IT lesions, n (%)	8 (40%)
DIS, n (%)	9 (45%)
Largest lesion dimension, mm (mean ± SD)	8.4 ± 4.0
Smallest lesion dimension, mm (mean ± SD)	3.2 ± 0.9