Subependymal hyperintense layer on CISS sequence: An MRI study.
Glymphatic system
Subependymal layer
Virchow-Robin spaces
Journal
Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery
ISSN: 1433-0350
Titre abrégé: Childs Nerv Syst
Pays: Germany
ID NLM: 8503227
Informations de publication
Date de publication:
01 2021
01 2021
Historique:
received:
15
05
2020
accepted:
25
05
2020
pubmed:
7
6
2020
medline:
25
6
2021
entrez:
7
6
2020
Statut:
ppublish
Résumé
The present study aimed to explore the subependymal layers overlying the cerebral ventricles using magnetic resonance imaging. A total of 69 outpatients underwent constructive interference in steady-state (CISS) sequence in thin-sliced, coronal, and sagittal sections. The subependymal layers were delineated as linear hyperintensities, coursing along the outer margins of the ventricular walls. On coronal images, the hyperintensities surrounding the anterior horn of the lateral ventricle were identified in 97% of patients, while those of the third ventricle were identified in 96% of patients. In the trigone and posterior horn of the lateral ventricle, the hyperintensities were delineated in all patients. On sagittal images, subependymal hyperintensities were identified in all. At the level of the anterior horn and third ventricle, the subependymal hyperintensities were found to communicate with the Virchow-Robin spaces (VRSs) in 68% and 65% of patients, respectively. At the level of the trigone and posterior horn of the lateral ventricle, the VRSs communicated with the subependymal hyperintensities in 83% of patients. Subependymal hyperintensity may represent an inflow passage of the VRSs that jointly contribute to efficient transependymal migration of the interstitial fluid into the ventricular cerebrospinal fluid.
Identifiants
pubmed: 32504169
doi: 10.1007/s00381-020-04707-2
pii: 10.1007/s00381-020-04707-2
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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