Hi all
Recently, we have been collecting and processing our DTI data with 32
directions and several separate b0s images (it's recommended that every 8
directions should have one B0 image). Initially, we want to average the
separate b0s together with the b0 of the 4D DTI data. However, after some
analyses, we found that the grayscale intensity range of the separate b0s is
quite different from that of the b0s acquired together with b1s, which maybe
due to the different scanning parameters (eg. TR and TE). Further, it is found
that the relationship between the intensity range of these two kinds of b0s is
nonlinear, which means that we can not simply average them. Is there anyone
who also came across this sort of problem and knows how to fix it?
Thanks for your help
Many thanks and regards
Johnny
School of Psychiatry
University of New South Wales
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