Abstract
Background
Understanding and teaching the three-dimensional architecture of the brain remains difficult because of the intricate arrangement of grey nuclei within white matter tracts. Although cortical area functions have been well studied, educational and three-dimensional descriptions of the organization of deep nuclei and white matter tracts are still missing.
Objective
We propose herein a detailed step-by-step dissection of the lateral aspect of a left hemisphere using the Klingler method and provide high-quality stereoscopic views with the aim to help teach medical students or surgeons the three-dimensional anatomy of the brain.
Methods
Three left hemispheres were extracted and prepared. Then, according to the Klingler method, dissections were carried out from the lateral aspect. Photographs were taken at each step and were modified to provide stereoscopic three-dimensional views.
Results
Gray and white structures were described: cortex, claustrum, putamen, pallidum, caudate nucleus, amygdala; U-fibers, external and internal capsules, superior longitudinal fasciculus, frontal aslant fasciculus, uncinate fasciculus, inferior fronto-occipital fasciculus, inferior longitudinal fasciculus, corticospinal fasciculus, corona radiata, anterior commissure, and optic radiations.
Conclusion
This educational stereoscopic presentation of an expert dissection of brain white fibers and basal ganglia would be of value for theoretical or hands-on teaching of brain anatomy; labeling and stereoscopy could, moreover, improve the teaching, understanding, and memorizing of brain anatomy. In addition, this could be also used for the creation of a mental map by neurosurgeons for the preoperative planning of brain tumor surgery.
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Data availability
The datasets analyzed in the current study are directly available as Figures and supplementary material.
Abbreviations
- AF:
-
Arcuate fasciculus
- IFOF:
-
Inferior fronto-occipital fasciculus
- ILF:
-
Inferior longitudinal fasciculus
- FAT:
-
Frontal aslant tract
- SLF:
-
Superior longitudinal fasciculus
- UF:
-
Uncinate fasciculus
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Acknowledgements
We thank Dr P. Robinson for his help in manuscript preparation.
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TJ and ID wrote the manuscript and took pictures ES CH and PM reviewed the manuscript in its anatomical purpose TP and JFM reviewed the manuscript for white tract anatomy accuracy
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This study has been approved by the by the Committee for Oversight of Research Involving the Dead of the University of Pittsburgh Medical Center.
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276_2024_3305_MOESM1_ESM.tiff
Supplementary file1 Supplementary material: Side-by-side three-dimensional stereoscopic images of each brain dissection step (1-12) (TIFF 8101 KB)
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Jacquesson, T., Djarouf, I., Simon, É. et al. Educational stereoscopic representation of a step-by-step brain white fiber dissection according to Klingler’s method. Surg Radiol Anat 46, 303–311 (2024). https://doi.org/10.1007/s00276-024-03305-0
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DOI: https://doi.org/10.1007/s00276-024-03305-0