On 2/16/15 9:31 AM, Bruce Fischl wrote:
> Hi Melina
>
> 1. Can you send us a picture? I'm not sure given your description,
> although the surfaces can be arbitrary in the hippocampus/amygdala and
> should be ignored there.
This corresponds to  the "cortex unknown" label in aparc (and is 
probably labeled WM in the aseg). This is normal.
>
> 2. You should be able to use mri_label2vol for this. Note that you can load
> the label itself directly into freeview if you want without needing to run
> label2vol (but it will follow the white surface I believe and not fill the
> ribbon)
>
> cheers
> Bruce
>
> On Mon, 16 Feb 2015, Melina Lehnerer wrote:
>
>> Hi experts,
>> I'm rather unexperienced with freesurfer so please excuse my basic
>> requests.
>> 1. I controlled the segmentation of the entorhinal cortex (EC) in over
>> 50 subjects following the borders described in Fischl 2009 (Predicting
>> the location of EC from MRI) with tkmedit [mri name] brainmask.mgz -seg
>> aparc-aseg.mgz.
>> I noticed (esp. in the coronar slices and in approximately every mri)
>> brain tissue between amygdala/ hippocampus/ temporalpole and the EC
>> labelled as "none" or "ctx-?h-unknown". Has anything gone wrong with the
>> segmentation? Or is a label (e.g. perirhinal cortex) not loaded?
>>
>> 2. Is there a possibility to visualize the EC volume in freeview or
>> tkmedit from the exvivo.stats or exvivo.label file? I would like to
>> compare it to the other EC volume because they have very different
>> volumes. In the mail archive were similar questions about that but you
>> haven't answered them yet.
>>
>> Many thanks in advance,
>> Melina
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>>
>>
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