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Article Dans Une Revue Communications Biology Année : 2021

Occipital Intralobar fasciculi: a description, through tractography, of three forgotten tracts

Maeva Bugain
Yana Dimech
  • Fonction : Auteur
Natalia Torzhenskaya
  • Fonction : Auteur
Svenja Caspers
  • Fonction : Auteur
Richard Muscat
  • Fonction : Auteur
Claude Bajada

Résumé

Abstract Diffusion MRI paired with tractography has facilitated a non-invasive exploration of many association, projection, and commissural fiber tracts. However, there is still a scarcity of research studies related to intralobar association fibers. The Dejerines’ (two of the most notable neurologists of 19 th century France) gave an in-depth description of the intralobar fibers of the occipital lobe. Unfortunately, their exquisite work has since been sparsely cited in the modern literature. This work gives a modern description of many of the occipital intralobar lobe fibers described by the Dejerines. We perform a virtual dissection and reconstruct the tracts using diffusion MRI tractography. The dissection is guided by the Dejerines’ treatise, Anatomie des Centres Nerveux . As an accompaniment to this article, we provided a French-to-English translation of the treatise portion concerning five intra-occipital tracts, namely: the stratum calcarinum, the stratum proprium cunei, the vertical occipital fasciculus of Wernicke, the transverse fasciculus of the cuneus and the transverse fasciculus of the lingual lobule of Vialet. It was possible to reconstruct all but one of these tracts. For completeness, the recently described sledge runner fasciculus, although not one of the Dejerines’ tracts, was identified and successfully reconstructed.

Dates et versions

hal-03370240 , version 1 (07-10-2021)

Identifiants

Citer

Michel Thiebaut de Schotten, Maeva Bugain, Yana Dimech, Natalia Torzhenskaya, Svenja Caspers, et al.. Occipital Intralobar fasciculi: a description, through tractography, of three forgotten tracts. Communications Biology, 2021, 4 (1), ⟨10.1038/s42003-021-01935-3⟩. ⟨hal-03370240⟩

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