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Imaging of the optic chiasm and retrochiasmal visual pathways

Nicolas Menjot de Champfleur 1 S. Menjot de Champfleur 1 Damien Galanaud 2, 3 N. Leboucq 1 A. Bonafé 1 
2 ARAMIS - Algorithms, models and methods for images and signals of the human brain
Inria Paris-Rocquencourt, UPMC - Université Pierre et Marie Curie - Paris 6, ICM - Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute
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.
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Contributor : Olivier Colliot Connect in order to contact the contributor
Submitted on : Wednesday, October 30, 2013 - 10:59:57 AM
Last modification on : Friday, August 5, 2022 - 3:39:59 AM

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Nicolas Menjot de Champfleur, S. Menjot de Champfleur, Damien Galanaud, N. Leboucq, A. Bonafé. Imaging of the optic chiasm and retrochiasmal visual pathways. Diagnostic and Interventional Imaging, 2013, 94 (10), pp.957-971. ⟨10.1016/j.diii.2013.06.012⟩. ⟨hal-00878500⟩



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