Magnetic resonance imaging using FLAIR pulse sequence in white matter diseases.
Fifty six patients among whom 39 had white matter diseases had MRI of the brain comparing FLAIR sequence to a conventional proton density sequence. Flair sequence allowed to detect 18 additional hypersignal (HS) that were not present on T2 sequence. These HS were located in the periventricular areas for 5 of them, near the cortical sulci in 10, and in the centrum semi-ovale for 3. FLAIR sequence permitted analyze 41 other lesions that were not obvious on proton density sequences. Thirty five of them were thus confirmed to be HS : 31 in the paracortical areas, 3 in the paraventricular regions and one in the internal capsule, whereas the remaining 6 were normal sulci of the brain. FLAIR sequence increases the sensitivity of MRI in white matter diseases.
Tourbah
A
A
Service de Neuroradiologie, Centre Hospitalier National d'Ophtalmologie des XV-XX, Paris, France.
Deschamps
R
R
Stievenart
J L
JL
Lopez
A
A
Iba-Zizen
M T
MT
Lyon-Caen
O
O
Cabanis
E A
EA
D000293:Adolescent; D000328:Adult; D016736:Antiphospholipid Syndrome / Q000175:diagnosis; D001927:Brain Diseases / Q000175:diagnosis*; D002540:Cerebral Cortex / Q000473:pathology; D002552:Cerebral Ventricles / Q000473:pathology; D002561:Cerebrovascular Disorders / Q000175:diagnosis; D003337:Corpus Callosum / Q000473:pathology; D005260:Female; D006111:Graves Disease / Q000175:diagnosis; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008180:Lupus Erythematosus, Systemic / Q000175:diagnosis; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis; D009902:Optic Neuritis / Q000175:diagnosis; D015493:Paraparesis, Tropical Spastic / Q000175:diagnosis