Highlights
- •Surgery of ventricular lesions requires detailed information regarding white matter fibers.
- •Corona radiata and tapetum fibers were demonstrated by dissecting hemispheres.
- •The location of fibers must be assessed by performing MR tractography.
Abstract
In this study the three-dimensional anatomy of the corona radiata and tapetum via
the fiber dissection and diffusion tensor imaging of the brain for ventricular surgery
was demonstrated. Ten formalin-fixed cerebral hemispheres were dissected for corona
radiata and tapetum via Klingler’s fiber dissection method under an operating microscope.
The corona radiata and tapetum were dissected through lateral and medial surfaces
of the cerebral hemisphere, respectively. All surgical routes for ventricular lesions
were evaluated for white matter fibers during and after dissections. Corona radiata
and tapetum fibers were demonstrated by dissecting hemispheres through lateral and
medial aspects of the brain. The internal capsule contains all fibers that extend
from thalamus to cortex and cortex to thalamus, brainstem, and spinal cord. These
fan-shaped fibers extending from cortex to internal capsule were named the corona
radiata. The corona radiata is not a specific pathway, and it is composed of several
different fiber pathways. The tapetum contains splenium and body fibers of the corpus
callosum. Tapetum is located immediately medial to the ependymal line of the ventricular
wall and forms a fiber layer in the medial optical radiation on the coronal and axial
sections. Surgical planning for ventricular lesions requires detailed information
regarding white matter fibers that can be obtained by the fiber dissection and diffusion
tensor imaging of the brain to decrease surgical complications.
Keywords
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Article info
Publication history
Published online: August 27, 2018
Accepted:
August 13,
2018
Received:
April 25,
2018
Identification
Copyright
© 2018 Published by Elsevier Ltd.
