Hi Lee,
what is your goal? Are you just trying to measure lobar volume?
Bruce
On Sat, 14
Apr 2007 [EMAIL PROTECTED] wrote:
Burce and Rahul,
thanks so much for your help.
So I am a little new to freesurfer.
I have been using lh.ribbon and rh.ribbon as neocortical masks and aseg.mgz for
subcortical gray structures, with labels from FreeSurferColorLUT.txt.
What I want to do now is to further subdivide the *h.ribbon masks into frontal,
temporal,
occipital and parietal lobes.
How would one go about this?
Lee
-------------- Original message ----------------------
From: [EMAIL PROTECTED]
Hi Lee,
Bruce is correct in that some ROIs cross two or more lobar boundaries
(i.e. fusiform) while others (i.e. cingulate subdivisions) can be
considered separately or can be included to follow the 4 lobes. To the
best of my ability, if you are using the *h.aparc.annot, you can add up
the individual ROIs as such to get the lobes:
Frontal:
Superior Frontal
Rostral and Caudal Middle Frontal
Pars Opercularis, Pars Triangularis, and Pars Orbitalis
Lateral and Medial Orbitofrontal
Precentral
Paracentral
Frontal Pole
Parietal:
Superior Parietal
Inferior Parietal
Supramarginal
Postcentral
Precuneus
Temporal
Superior, Middle, and Inferior Temporal
Fusiform
Transverse Temporal
Entorhinal
Temporal Pole
Parahippocampal
Occipital:
Lateral Occipital
Lingual
Cuneus
Cingulate (if want to include in a lobe):
Rostral Anterior (Frontal)
Caudal Anterior (Frontal)
Posterior (Parietal)
Isthmus (Parietal)
Best,
rahul
Hi Bruce,
Are you saying that you don't think I even could build these lobar groups
using the existing codes in the LUT.txt file?
Lee
-----Original Message-----
From: Bruce Fischl [mailto:[EMAIL PROTECTED]
Sent: Saturday, April 14, 2007 2:21 PM
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: [Freesurfer] major lobes - frontal, parietal occipital and
temporal
Hi Lee,
sorry, not really - we've never done a lobar parcellation, and I don't
think the existing units break down that way.
Bruce
On Sat, 14 Apr 2007
[EMAIL PROTECTED] wrote:
I know that I could go thru the
FreeSurferColorLUT.txt
file to get codes for different cortical structures.
Is there an easier way to get the major lobes:
frontal, parietal occipital and temporal.
Lee
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