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The use of a cerebral perfusion and immersion-fixation process for subsequent white matter dissection
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Neurosurgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Cell Biology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Regenerative neurobiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Neurosurgery.
2015 (English)In: Journal of Neuroscience Methods, ISSN 0165-0270, E-ISSN 1872-678X, Vol. 253, 161-169 p.Article in journal (Refereed) Published
Abstract [en]

Background: The Klingler's method for white matter dissection revolutionized the study of deep cerebral anatomy. Although this technique made white matter dissection more feasible and widely used, it still presents some intrinsic limitations. New method: We evaluated the quality of different methods for specimen preparation based on an intra-carotidal formalin perfusion fixation process. Ten post-mortem human hemispheres were prepared with this method and dissected in a stepwise manner. Results: The homogeneous and rapid fixation of the brain allowed documentation of several fine additional anatomical details. Intra-cortical white matter terminations were described during the first stage of dissection on each specimen. No limitations were encountered during dissection of the major associative bundles. On the contrary, the quality of the fixation of the specimens made it possible to isolate them en bloc. One of the most complex and deep bundles (accumbo-frontal fasciculus) was dissected without technical limitations. Deep vascular structures were very well preserved and dissected within the white matter until their sub-millimetric terminations. Comparison with existing method: Short time for preparation, a more homogeneous fixation, no technical limitation for a detailed description of superficial and deep white matter anatomy, the possibility to dissect with a single technique the fibre organization and the white matter vascular architecture are the advantages reported with the perfusion fixation. Conclusion: These results provide encouraging data about the possibility to use a perfusion fixation process, which may help in improving the quality of white matter dissection for research, didactic purposes and surgical training.

Place, publisher, year, edition, pages
2015. Vol. 253, 161-169 p.
Keyword [en]
Fibre dissection, White matter, Klingler, Fixation, Perfusion, Deep vascular anatomy, Accumbo-frontal fasciculus
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:uu:diva-263428DOI: 10.1016/j.jneumeth.2015.06.019ISI: 000360867400017PubMedID: 26149289OAI: oai:DiVA.org:uu-263428DiVA: diva2:860309
Available from: 2015-10-12 Created: 2015-09-30 Last updated: 2017-12-01

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Latini, FrancescoHjortberg, MatsAldskogius, HåkanRyttlefors, Mats

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