Surface reconstruction from routine CT-scan shows large anatomical variations of falx cerebri and tentorium cerebelli.
Brain herniation
Brainstem
Corpus callosum injury
Modeling
Reference frame
Journal
Acta neurochirurgica
ISSN: 0942-0940
Titre abrégé: Acta Neurochir (Wien)
Pays: Austria
ID NLM: 0151000
Informations de publication
Date de publication:
03 2021
03 2021
Historique:
received:
18
09
2019
accepted:
30
01
2020
pubmed:
9
2
2020
medline:
5
6
2021
entrez:
9
2
2020
Statut:
ppublish
Résumé
Finite element modeling of the human head offers an alternative to experimental methods in understanding the biomechanical response of the head in trauma brain injuries. Falx, tentorium, and their notches are important structures surrounding the brain, and data about their anatomical variations are sparse. To describe and quantify anatomical variations of falx cerebri, tentorium cerebelli, and their notches. 3D reconstruction of falx and tentorium was performed by points identification on 40 brain CT-scans in a tailored Matlab program. A scatter plot was obtained for each subject, and 8 anatomical landmarks were selected. A reference frame was defined to determine the coordinates of landmarks. Segments and areas were computed. A reproducibility study was done. The height of falx was 34.9 ± 3.9 mm and its surface area 56.5 ± 7.7 cm We observe large anatomical variations of falx, tentorium, and notches, crucial to better understand the biomechanics of brain injury, in personalized finite element models.
Sections du résumé
BACKGROUND
Finite element modeling of the human head offers an alternative to experimental methods in understanding the biomechanical response of the head in trauma brain injuries. Falx, tentorium, and their notches are important structures surrounding the brain, and data about their anatomical variations are sparse.
OBJECTIVE
To describe and quantify anatomical variations of falx cerebri, tentorium cerebelli, and their notches.
METHODS
3D reconstruction of falx and tentorium was performed by points identification on 40 brain CT-scans in a tailored Matlab program. A scatter plot was obtained for each subject, and 8 anatomical landmarks were selected. A reference frame was defined to determine the coordinates of landmarks. Segments and areas were computed. A reproducibility study was done.
RESULTS
The height of falx was 34.9 ± 3.9 mm and its surface area 56.5 ± 7.7 cm
CONCLUSION
We observe large anatomical variations of falx, tentorium, and notches, crucial to better understand the biomechanics of brain injury, in personalized finite element models.
Identifiants
pubmed: 32034496
doi: 10.1007/s00701-020-04256-2
pii: 10.1007/s00701-020-04256-2
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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