Anatomy and White Matter Connections of the Parahippocampal Gyrus.
World Neurosurg
; 148: e218-e226, 2021 04.
Article
en En
| MEDLINE
| ID: mdl-33412321
ABSTRACT
BACKGROUND:
The parahippocampal gyrus is understood to have a role in high cognitive functions including memory encoding and retrieval and visuospatial processing. A detailed understanding of the exact location and nature of associated white tracts could significantly improve postoperative morbidity related to declining capacity. Through diffusion tensor imaging-based fiber tracking validated by gross anatomic dissection as ground truth, we have characterized these connections based on relationships to other well-known structures.METHODS:
Diffusion imaging from the Human Connectome Project for 10 healthy adult controls was used for tractography analysis. We evaluated the parahippocampal gyrus as a whole based on connectivity with other regions. All parahippocampal gyrus tracts were mapped in both hemispheres, and a lateralization index was calculated with resultant tract volumes.RESULTS:
We identified 2 connections of the parahippocampal gyrus inferior longitudinal fasciculus and cingulum. Lateralization of the cingulum was detected (P < 0.05).CONCLUSIONS:
The parahippocampal gyrus is an important center for memory processing. Subtle differences in executive functioning following surgery for limbic tumors may be better understood in the context of the fiber-bundle anatomy highlighted by this study.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Giro Parahipocampal
/
Sustancia Blanca
/
Red Nerviosa
Límite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
World Neurosurg
Asunto de la revista:
NEUROCIRURGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Australia