[Comparative study of visual evoked potentials and magnetic resonance imaging in multiple sclerosis].

19 patients with clinically definite, probable or possible multiple sclerosis were examined by means of visual evoked potentials and magnetic resonance imaging. The patients were classified in three groups according to the criteria of Mac Alpine. 11 patients had definite multiple sclerosis: 8 of these patients, who had visual disorders evoking an optic neuropathy, had abnormal visual evoked potentials and 7 of these 8 patients had a pathological magnetic resonance imaging.

[Magnetic resonance imaging in rheumatology].

The authors report their experience with magnetic resonance imaging in rheumatology, established on more than 250 examinations. The method seems interesting for the study of discal and somatic spine diseases, and especially for the evaluation of tumor extension, the diagnosis of herniated disc, the diagnosis of spondylodiscitis, the exploration of the cervico-occipital joint. As compared to tomodensitometry, this method presents at the same time advantages and drawbacks.

[The brain scan and cervical artery lesions. Correlations: clinical-arteriographic-scanning].

Cerebral angiography and CT brain scan are performed on a group of 174 patients (28 asymptomatic patients; 109 patients with symptoms of stroke in relation with a clinically defined vascular territory; 37 patients with symptoms in relation with a clinically uncertain vascular territory). Angiographic findings are: cervical artery lesions in 143 patients, brain artery lesions in 6 patients, both extra and intra cranial artery lesions in 22 patients, and non atheromatous artery lesions in 3 patients. CT brain scan shows: hypodensity in 19 cases, hyperdensity in 1 case, cortical and/or sub cortical atrophy in 141 cases.