Depicting the anatomy of the gyral white matter: ubi sumus? quo vadimus?

Autor:	Dannhoff G; CHU de Strasbourg, Strasbourg 67000, France.; Inserm U1253, iBrain, Université de Tours, Tours 37032, France., Poudel PP; Department of Anatomy, Manipal College of Medical Sciences, Pokhara 33700, Nepal., Bhattarai C; Department of Anatomy, Manipal College of Medical Sciences, Pokhara 33700, Nepal., Kalthur SG; Department of Anatomy, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India., Maldonado IL; Inserm U1253, iBrain, Université de Tours, Tours 37032, France.; Department of Anatomy, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India.
Jazyk:	angličtina
Zdroj:	Brain communications [Brain Commun] 2023 Oct 11; Vol. 5 (5), pp. fcad265. Date of Electronic Publication: 2023 Oct 11 (Print Publication: 2023).
DOI:	10.1093/braincomms/fcad265
Abstrakt:	A cerebral gyrus is made up of an external layer of folded cortex and an inner core of white matter. The architecture of the core has specific features that make it distinct from the white matter of the deep brain regions. Limited externally by the grey matter that covers the top of the gyrus and the neighbouring sulci, this gyral white matter is made up of a mix of fibre populations with multiple directions and destinations. The presence of densely packed fibres with multiple crossings, the proximity to the cortex and the existence of inter-regional and inter-individual variations make the task of depicting this microanatomy extremely challenging. The topic is, however, of paramount relevance for both fundamental and applied neurosciences. This fibre colocalization is crucial for the functional role of each cerebral region and is key to clinical manifestations in cases of parenchymal damage. As track tracing, imaging and dissection are based on different biological or physical principles, it is natural for their results to sometimes be different, but they are often complementary. As the amount of available information increases, it becomes fragmented due to the multiplicity of methods, target phenomena and studied species. In this scoping review, we present the key concepts and map the primary sources of evidence regarding identifying the fibre pathways that compose the gyral white matter, enabling the discussion of avenues for future research. The general pattern in which these pathways are distributed in the gyral white matter was detailed, and the main variations as a function of brain topography were explained and illustrated with typical examples. Competing Interests: The authors declare that they have no competing interest. (© The Author(s) 2023. Published by Oxford University Press on behalf of the Guarantors of Brain.)
Databáze:	MEDLINE
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