Defining Anatomical Tree

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Defining Anatomical Tree

Nicos Markides
Hi,

I want to segment the brain to more than one structures, not only to wm,csf,gm (for example to hippocampus, caudate, putamen etc) using the EMSegmenter Module.
When I am defining the anatomical tree in what criteria i' ll decide where should i put those structures (for example how do i know if hippocampus should be the child of gm? etc)

Thanks, nicos

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Re: Defining Anatomical Tree

madanrao
Hi,

For segmentation purpose brain can be divided into cortex (frontal,parietal,occipital,temporal lobes), whitematter,brainstem (pons & medulla oblongata) and cerebellum, finally CSF. Hippocampus is a nuclear structure and is connected to parahippocampal gyrus (which is part of temporal lobe) you assign it to gm (as opposed to wm). 

In brain there are neural cells (where information is processed) and their axons (which connect various information zones). Together neural cells form grey matter, nuclei etc., where as axons form neural tracts, nerves or white matter. Brain became complex by connecting old and newly evolved structures. For example, lenticular nuclei (putamen & globus pallidus) control fine movement where as limbic system (hippocampus, amygdala & parahippocampal gyrus) acts as electrical generator and is involved in epilepsy and schizophrenia. In some reptiles like dynosaurs there are highly evolved direct connections between olfactory nerve, frontal lobe and limbic system with a high degree of olfactory memory and related intelligence. In contrast humans have highly evolved visual and auditory systems.

I hope this helps.

AM Mohan Rao

On Wed, Jul 18, 2012 at 7:21 PM, Nicos Markides <[hidden email]> wrote:
Hi,

I want to segment the brain to more than one structures, not only to wm,csf,gm (for example to hippocampus, caudate, putamen etc) using the EMSegmenter Module.
When I am defining the anatomical tree in what criteria i' ll decide where should i put those structures (for example how do i know if hippocampus should be the child of gm? etc)

Thanks, nicos

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http://massmail.spl.harvard.edu/mailman/listinfo/slicer-users
To unsubscribe: send email to [hidden email] with unsubscribe as the subject


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