Tractography of the ansa lenticularis in the human brain

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art_LI_Tractography_of_the_ansa_lenticularis_in_the_human_2022.PDF (2.6 MB)
Citações na Scopus
7
Tipo de produção
article
Data de publicação
2022
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
WILEY
Autores
LI, Mengjun
ZHANG, Zhiping
WU, Xiaolong
WANG, Xu
LIU, Xiaohai
LIANG, Jiantao
CHEN, Ge
LI, Mingchu
Citação
CLINICAL ANATOMY, v.35, n.3, p.269-279, 2022
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
The aim of this study was to make a thorough investigation of the trajectory of the ansa lenticularis (AL) and its subcomponents using high-resolution fiber-tracking tractography. The subcomponents of the AL were reconstructed from one region of interest (ROI) in the area of the globus pallidus combined with another ROI in the red nucleus, substantia nigra, subthalamic nucleus, or thalamus. This fiber-tracking protocol was tested in an HCP-1065 template, 35 healthy subjects from Massachusetts General Hospital (MGH), and 20 healthy subjects from the human connectome project (HCP) using generalized q-sampling imaging (GQI)-based tractography. Quantitative anisotropy and fractional anisotropy were also computed for the AL subcomponents. The subcomponents of the AL could be reconstructed in the HCP-1065 template, 35 MGH healthy subjects, and 20 HCP healthy subjects. The AL descends from the globus pallidus and joins the ansa peduncularis for a short distance, subdividing later into fibers that continue separately to the red nucleus, substantia nigra, subthalamic nucleus, and thalamus. The study demonstrated the trajectory of the ansa lenticularis and its subcomponents using GQI-based tractography, improving our understanding of the anatomical connectivity between the globus pallidus and the thalamo-subthalamic region in the human brain. One Sentence Summary The investigation of the ansa lenticularis and its subcomponents using high-resolution diffusion images based tractography.
Palavras-chave
ansa lenticularis, generalized Q-sampling imaging, globus pallidus, tractography, white matter
URI
https://observatorio.fm.usp.br/handle/OPI/46206
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Coleções
Artigos e Materiais de Revistas Científicas - HC/ICHC