Hi
You would probably like to include :
- the parahippocampal gyrus
- the hippocampus
- the amygdala
but not the brain stem
The question is more complex for the entorhinal area since it is a part of the parahippocampal gyrus. To make things simple :
- the hippocampus lies at the superior aspect of the parahippocampal gyrus. At the level of the body of the hippocampus, this flat region is known as the subiculum
- at the level of the hippocampus head, the anterior part of the parahippocampal gyrus is know as the piriform lobe, which itself divides in 2 parts :
- the entorhinal area, that rostraly continues the subiculum,
- and the uncal part of the piriform lobe that curves posteriorly to form the rostral part of the uncus
So including the entorhinal + parahippocampal would include the entorhinal area twice ; the aparc.a2009s consider the PHG as a whole.
cheers
--
Christophe Destrieux,
----- Mail original -----
> De: "Akshay"
akshay.pai.u@gmail.com
> À: freesurfer@nmr.mgh.harvard.edu
> Envoyé: Lundi 18 Mars 2013 14:59:03
> Objet: [Freesurfer] Definition of medial temporal lobe
> Hello freesurfer experts,
> I am doing some TBM analysis and I am looking for the definition of
> Medial temporal lobe. According to the definitions I found out they
> are
> hippocampus+amygdala+brainstem+parahippocampal regions+entorhinal
> region.
> I can get hippocampus and amygdala ROI from aseg.mgz; however for
> parahippocampal and entorhinal regions should i use aparc+aseg.mgz
> and
> aparc.a2009s+aseg.mgz?
> Any help will be appreciated.
> Best,
> Akshay
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