I have a question....
I'm trying to segment CSF, Gray, and White matter of brain using BET and
FAST.
I found out that result of some data set doesn't look good as others.
After FAST procedure, alot of gray matter pixels are separated to be CSF
pixels. I did pixel value analysis on these data sets, and i found out that
pixel intensity of these data sets are very low (e.g. CSF=10, GM=20, WM=40).
Those with good results have much higher intensities (e.g. CSF=100, GM=200,
WM=400).
Is there a way still segment brain volume correctly on those data sets with
low pixel intensities?
I'm assuming that if somehow i can scale the pixel values by factor of 10
then i'll have intensity similar to "good-result" producing data sets. Is
there a way for me to scale the images?
Thanks.
Aaron****************************EMAIL
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