MRI of the optic nerve in benign intracranial hypertension.
We investigated the MRI appearance of the optic nerve and its cerebrospinal-fluid-containing sheath in 17 patients with benign intracranial hypertension (BIH) and 15 normal controls. Using phased-array local coils, 3-mm coronal T2-weighted fat-suppressed fast spin-echo images were obtained with an in-plane resolution of < 0.39 mm. The optic nerve and its sheath were clearly differentiated. An enlarged, elongated subarachnoid space around the optic nerve was demonstrated in patients with BIH. High-resolution MRI of the optic nerve offers additional information which may be of value for diagnosis and in planning and monitoring treatment.
Gass
A
A
NMR Research Group, Institute of Neurology, National Hospital for Neurology and Neurosurgery, London, UK.
Barker
G J
GJ
Riordan-Eva
P
P
MacManus
D
D
Sanders
M
M
Tofts
P S
PS
McDonald
W I
WI
Moseley
I F
IF
Miller
D H
DH
D000293:Adolescent; D000328:Adult; D002555:Cerebrospinal Fluid; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009901:Optic Nerve Diseases / Q000209:etiology / Q000473:pathology*; D011559:Pseudotumor Cerebri / Q000150:complications / Q000473:pathology*