help > L and R masks not symmetric
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Aug 11, 2016  09:08 AM | Keith Harenski
L and R masks not symmetric
Hello,

I created a few masks using wfu_pickatlas ver 3.0.5 and noted that the L and R masks are not symmetric. I have noted this before in previous versions as well but have never seen a discussion as to why that may be. See attached for a few examples.

Any ideas as to why this may be?

Thanks,

Keith
Aug 15, 2016  06:08 AM | Benjamin Wagner - UT Southwestern Medical Center
RE: L and R masks not symmetric
Hi Keith,
I am unable to find the area (OFC) you mention in the image. How did you define it?

Ben
Aug 15, 2016  07:08 AM | Keith Harenski
RE: L and R masks not symmetric
Originally posted by Benjamin Wagner:
Hi Keith,
I am unable to find the area (OFC) you mention in the image. How did you define it?

Ben
Hello Ben,

In that example it was Frontal_Med_Orb_L and R. See attached.

Thanks,

Keith
Attachment: pickatlas_cap.JPG
Aug 15, 2016  10:08 AM | Benjamin Wagner - UT Southwestern Medical Center
RE: L and R masks not symmetric
Hi Keith,
  The simple answer to the questions is this is an example of asymmetry in the original AAL atlas.  It may help to review the methods of the original atlas generation: http://www.cyceron.fr/index.php/en/plateforme-en/freeware.

Ben