Hi Vincent,



Thanks for your message. I apologize for my delay in replying.
There are several lines of action that we suggest, given the information you provided.

1) With regard to SegPostProcess parameters: The third ventricle is a rather skinny surface, and when you resample to 0.5 iso it might not be well represented. Have you tried to go to a lower resolution?

2) With regard to GenParaMesh, it seems to fail in the first sample (GenParaMesh is usually the most time consuming step and this case took only a second, according to your log file), have you looked at the segmentation obtained from segpostprocess in this case? Also, What are the Euler numbers for this two samples?



Could you please let us know if you can visualize the segpostprocess results and Euler files?
Maybe we can continue troubleshooting.



Thank you!
Beatriz