Table 5: 3rd MRI - number of patients (%).

 

All the patients n = 13

With sequelae

n = 7

Without sequelae n = 6

Difference between the 2 groups: Statistical significance

Bilateral lesions

6 (46)

4 (57)

2 (33)

NS

Asymmetrical lesions

10 (77)

5 (71)

5 (83)

NS

Mean number of lesions

2,4

3,9

0,7

NS

Cortical lesion

2 (15)

2 (29)

0 (0)

NS

Lesions of the sub-cortical white matter

2 (15)

1 (14)

1 (17)

NS

Lesions of the deep and periventricular white matter

2 (15)

1 (14)

1 (17)

NS

Localisation of the lesions

 

 

 

 

Frontal

3 (23)

2 (29)

1 (17)

NS

Temporal

2 (15)

2 (29)

0 (0)

NS

Parietal

2 (15)

2 (29)

0 (0)

NS

Occipital

1 (8)

1 (14)

0 (0)

NS

Insula

1 (8)

1 (14)

0 (0)

NS

Thalamus

1 (8)

1 (14)

0 (0)

NS

Basal ganglia

2 (15)

2 (29)

0 (0)

NS

Caudate nucleus

0 (0)

0 (0)

0 (0)

 

Putamen and globus pallidus

2 (15)

2 (29)

0 (0)

NS

Brainstem

1 (8)

1 (14)

0 (0)

NS

Midbrain

1 (8)

1 (14)

0 (0)

NS

Pons

0 (0)

0 (0)

0 (0)

 

Medulla oblongata

0 (0)

0 (0)

0 (0)

 

Cerebral peduncles

3 (23)

1 (14)

2 (33)

NS

Corpus callosum

0 (0)

0 (0)

0 (0)

 

Internal capsule

0 (0)

0 (0)

0 (0)

 

Cerebellum

1 (8)

1 (14)

0 (0)

NS

Cerebellar peduncles

1 (8)

1 (14)

0 (0)

NS

Spinal cord

0 (0)

0 (0)

0 (0)

 

Optic nerves

0 (0)

0 (0)

0 (0)

 

Enhancement after gadolinium injection*

2/8 (25)

2/5 (40)

0/3 (0)

NS

Restricted diffusion

1 (8)

1 (14)

0 (0)

NS

T1 hyposignal

0 (0)

0 (0)

0 (0)

 

Abreviation: NS = not significative. *: There was no gadolinium injection for 5 patients; †: Diffusion weighted images were not realized for 1 patient.