Table 4.

MRI Results of the Study Population

Results MRI		At the onset		After 3 months
		Number	Percent	Number	Percent
Number of lesions	<2	12	6.8	42	31.5
	>=2	139	78.5	91	68.4
	total	151	100	133	100
Periventricular lesion	yes	161	91.5	107	62.2
	no	15	8.5	65	37.8
	total	176	100	172	100
Juxtacortical lesion	yes	39	22	21	12.2
	no	138	78	151	87.8
	total	177	100	172	100
Infrateutorial lesion	yes	20	11.3	22	12.8
	no	157	88.7	150	87.2
	total	177	100	172	100
Spinal cord involvement	yes	94	53.1	67	39.2
	no	83	46.9	104	60.8
	total	177	100	171	100
Number of spinal cord lesions	<=2	28	34.1	16	26.7
	>2	54	65.9	44	73.3
	total	82	100	60	100
Presence of blackhole	yes	1	0.6	1	0.6
	no	176	99.4	171	99.4
	total	177	100	172	100
Enhancing lesion	yes	29	16.4	23	13.5
	no	148	83.6	148	86.6
	total	177	100	171	100