2007/9/20, Bruce Fischl <fischl@nmr.mgh.harvard.edu>:

if you draw a label outlining the region you can use
mris_anatomical_stats -l <label file> to get the thickness standard
deviations I think. Usually they aren't that interesting because the
thickness varies with geometry ( e.g. sulci are thinner than gyri).

cheers,
Bruce

On Thu, 20 Sep 2007, Inês Souta wrote:

> Well, I'm dealing with a patient with an heterogeneous lesion. Somehow, the
> lesion area seems to have misled the algorithm in terms of white and pial
> surface definition, leading to an erroneous cortical thickness measure in
> that area. What I was interested in analising (if possible) is the
> dispersion related to the thickness measures in that area.
>
> 2007/9/20, Bruce Fischl <fischl@nmr.mgh.harvard.edu>:
>>
>> what exactly do you mean? Spatial standard deviations? Usually those
>> aren't
>> terribly interesting, and it's the cross subject ones that are more
>> useful, but that doesn't sound like what you mean.
>>
>> Bruce
>>
>>
>> On Thu, 20 Sep 2007, Inês Souta wrote:
>>
>>> Hi there,
>>>
>>> How can I get a standard deviation map of the thickness measurements ina
>>> subject?
>>>
>>> Inês
>>>
>