Dear Yilong,
On Tue, 27 Jun 2006, Ma, Yilong wrote:
> We would appreciate if any of you are willing to share a gray matter mask
> without the cerebellum in the SPM space. A mask with only the cerebellum
> will also do.
I have manually segmented the cerebellum for a neuroreceptor mapping
project. The tracing was performed on the SPM99/templates/T1.img template
rather than the SPM99/canonical/single_subj_T1.img image.
The binary volume is available in the Brede
Toolbox, http://hendrix.imm.dtu.dk/software/brede/
You will need a function that can read the specialized XML-format that
the binary volume is saved in:
http://hendrix.imm.dtu.dk/software/brede/doc/m2html/brede/brede_read_xml2vol.html
The following commands with the Brede Toolbox will save the mask in an
SPM99-Analyze file:
f = fullfile(fileparts(which('brede')), 'xml', 'cerebellum1.xml');
V = brede_read_xml2vol(f);
brede_write_analyze(V, 'filename', 'cerebellum1')
You may want to check with SPM "Check Reg", MRIcro or another program
whether the mask covers the cerebellum sufficienly well for your purpose:
For canonical/avg152T1 the mask seems to cover the cerebellum well, while
for the single subject template in MRIcro (ch2) not all of the cerebellum
is covered.
best regards
Finn
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Finn Aarup Nielsen, IMM DTU, Denmark
Lundbeck Foundation Center for Intergrated Molecular Brain Imaging
http://www.imm.dtu.dk/~fn/ http://nru.dk/people/fnielsen/
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