Imaging of the optic chiasm and retrochiasmal visual pathways - 23/10/13
, S. Menjot de Champfleur a, D. Galanaud b, N. Leboucq a, A. Bonafé a
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Abstract |
The exploration of the chiasmal and retrochiasmal visual pathways is based on magnetic resonance imaging. A bitemporal hemianopsis suggests a lesion of the optic chiasm while homonymous lateral hemianopsis should lead to a search for a lesion of the retrochiasmal visual pathways. The causes of chiasmal impairment are mainly tumoral. The exploration protocol is based on MRI with T1-weighted sagittal sections, then T2- and T1-weighted coronal sections with and without injection. In case of a retrochiasmal syndrome, the MRI exploration protocol is a function of the type of occurrence of the deficiency and the context.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Brain, Cranial nerves, Orbits, MRI
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Vol 94 - N° 10
P. 957-971 - Ottobre 2013 Ritorno al numero
Articolo precedente
- Imaging of the non-traumatic brachial plexus
- X. Boulanger, J.-B. Ledoux, A.-L. Brun, C. Beigelman
- Imaging of the pre-chiasmatic optic nerve
- N. Menjot de Champfleur, N. Leboucq, S. Menjot de Champfleur, A. Bonafé
Benvenuto su EM|consulte, il riferimento dei professionisti della salute.