Cortical surface toolbox - surface analysis pipeline

[riviere]

Hi Aurélie,
The red warnings indicate that several nodes in the gyri graph have the same gyrus name, this was not really expected in the model, but doesn't harm. Honestly I don't know why this happens, the gyri parcellation process has been written about 7 years ago by Arnaud Cachia, I don't remember all of its internals...
The strange names are just gyri names that we didn't have a commonly recognized name for it: some gyry have a common name (pre-central gyrus, etc), and some do not. For those ones, we juste used "gyrus_n". In this process a gyrus is defined by the sulci which border it.
In this gyri model, "size" is the volume in mm3 of the cortex in the gyrus.
Actually there seems to be bugs remaining in this process because mesh don't look good and some of the gyry do not have a mesh at all, which explains that on some gyry the surface is null, and thus the thickness cannot be calculated. I'll try to look at it but it's an old code that I have not written myself...
Denis

[riviere]

Hi,
I have found several bugs in the "old gyral parcellation" process. Some of them can have consequences on the resulting measurements (missing area and thickness, duplicate nodes with the same label...) and others are only for visualization. I have spent the full day fixing them, it works better now, and the fixes will be part of the next brainVisa update.
Denis

[Olivier Coulon]

Thank you for fixing all this Denis.

Olivier