Hi Bruce,

I am still confusing about my subjects'recon that I still doubt my skill on
detecting the topological error. Therefore, I practice on the FStutorial
data and run the mris_euler_number on the "topo_defect_before" to see what
happens. The result returns me with 0 holes for all ?h.pial, ?h.white and
?h.inflated.

Can you help me with this problem.

Thank,
Trinh

2015-10-05 23:09 GMT+07:00 Bruce Fischl <fis...@nmr.mgh.harvard.edu>:

> Hi Trinh
>
> the inflated.nofix files are the ones before the topology fixer so they
> will always have defects in them
>
> cheers
> Bruce
>
> On Mon, 5 Oct 2015, Thục Trinh wrote:
>
> Hi Bruce,
>> I did check the output recon by using mris_euler_number, all the results
>> of
>> ?h.pial, ?.white and also ?h.inflated returned with: 0 holes. But the
>> result
>> from lh.inflated.nofix was: 28 holes.
>> When I load the 3D images of ?h.inflated.nofix in freeview, it appears
>> alot
>> of holes and also handles errors.
>> I wonder about the differences between ?h.inflated and ?h.inflated.nofix.
>> If
>> we want to estimate the quality of recon output, what images we should
>> use?
>>
>> Thanks and Have a nice day,
>>
>> Trinh
>>
>> 2015-10-02 19:33 GMT+07:00 Bruce Fischl <fis...@nmr.mgh.harvard.edu>:
>>       Hi Trinh
>>
>>       can you just attach the images? Your link didn't work for me.
>>       You can check the topology of the surface computationally using
>>       mris_euler_number. You might also try moving backwards/forwards
>>       a few slices to try to understand what is going on.
>>
>>       cheers
>>       Bruce
>>
>>       On Fri, 2 Oct 2015, Thục Trinh wrote:
>>
>>
>>
>>             ​[icon_10_generic_list.png]  NCP140539_2_recon.rar
>>             ​Hi Freesurfer Experts,
>>
>>             We are on the process of troubleshooting our
>>             subjects's recon and we came
>>             across with this error that we can not determine
>>             what kind of problem this
>>             is:
>>             It seems there is no white matter and pial errors on
>>             all slices as we check
>>             on three different views (sagital,coronal and
>>             axial);however, when we load
>>             rh.inflated.nofix surface on both freeview and
>>             tksurfer, there is a big
>>             difference that at the frontal cortex (area near the
>>             medial wall), it
>>             appears a handle error and also some hole errors on
>>             freeview while it does
>>             not on tksurfer.
>>             Would you explain how it is visualized that makes us
>>             so confused to
>>             troubleshoot since we can not find anything wrong on
>>             white matter volume to
>>             be fixed?
>>             Here is our data,
>>
>>             Have a nice day,
>>
>>             Trinh
>>
>>
>>
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