Dear FreeSurfers,
in the FreeSurfer cortical parcellation procedure, a volume measure is calculated for the lateral orbitofrontal cortex and in my study population I indeed do find a significant group difference in the volumes of this region. However, there certainly is signal loss of the MR signal in the orbitofrontal region... However, I am not quite sure how much of the lateral orbitofrontal cortex is concerned by this phanomenon. Thus, my question: Is there any data how reliable the volume measurement of the FreeSurfer cortical parcellation might be in the lateral orbitofrontal cortex? Is there a way to check how much of this parcel is concered from signal loss in my own data? And do you have any experience how reasonable it may be to interpret a group difference in this region?
Thank you very much in advance!
Cindy ___________________________________________________________ GRATIS für alle WEB.DE-Nutzer: Die maxdome Movie-FLAT! Jetzt freischalten unter http://movieflat.web.de