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 <fischl@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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