Hi experts,
I want to make a new, custom-made parcellation, based on the aparc but
with much higher resolution. (I've tried mris_divide_parcellation, which
yields strip-shaped instead of isometric labels, and
mris_make_face_parcellation, which loses spatial specificity.
The wiki describes a way of manually drawing new labels in tksurfer, but I
get stuck in the process. I've created a new CLUT, with no. 100-106 being
the new subdivisions of the original bankssts label:
# Freesurfer LUT information extracted from annotation file:
# lh.aparc.annot
# 2008-02-29 23:58:32
# This file can be used as the basis for a new LUT file for annotations
purposes
# which can be loaded into tksurfer using File Label Load color table
#No.Label Name: R G B A
0 unknown 25 525 0
1 bankssts25 10040 0
2 caudalanteriorcingulate125 100 160 0
3 caudalmiddlefrontal10025 0 0
4 corpuscallosum 1207050 0
5 cuneus 22020 100 0
6 entorhinal 2202010 0
7 fusiform 180 220 140 0
8 inferiorparietal 22060 220 0
9 inferiortemporal 18040 120 0
10 isthmuscingulate 14020 140 0
11 lateraloccipital2030 140 0
12 lateralorbitofrontal357550 0
13 lingual225 140 140 0
14 medialorbitofrontal2003575 0
15 middletemporal 160 10050 0
16 parahippocampal 20 22060 0
17 paracentral 60 22060 0
18 parsopercularis220 180 140 0
19 parsorbitalis 20 10050 0
20 parstriangularis 2206020 0
21 pericalcarine 120 10060 0
22 postcentral2202020 0
23 posteriorcingulate 220 180 220 0
24 precentral 6020 220 0
25 precuneus 160 140 180 0
26 rostralanteriorcingulate8020 140 0
27 rostralmiddlefrontal7550 125 0
28 superiorfrontal 20 220 160 0
29 superiorparietal20 180 140 0
30 superiortemporal 140 220 220 0
31 supramarginal 80 16020 0
32 frontalpole100 0 100 0
33 temporalpole707070 0
34 transversetemporal 150 150 200 0
100 bankssts_1 25 10041 0
101 bankssts_2 25 10045 0
102 bankssts_3 25 10050 0
103 bankssts_4 25 10055 0
104 bankssts_5 25 10060 0
105 bankssts_6 25 10065 0
I load the aparc and the new CLUT into tksurfer, draw points around a new
label, close the path, and then custom fill the area. How do I now
indicate that this is for instance the new label bankssts_1?
The wiki and mailing archive indicate some problems with manually
parcellating, but the info seems dated and scattered. So if there is some
place I can find this stuff myself, I'd be happy to check it out.
Thanks so much,
--
Linda Douw, Ph.D.
Research fellow
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