Hello,
In the past, we have run tractography twice, once from roi1 to roi2 and once from roi2 to roi1, in seed to target mode. We then used a percentage of each waytotal to threshold the fdt_paths before combining the two directions.
We are now attempting to use network mode with both roi1 and roi2 as seeds in an effort to simplify (half as many runs, no need to combine them). I have two questions regarding this:
Have people obtained better results using network mode rather than performing two runs in different directions and combining them or are the two methods fairly comparable?
Because the network mode waytotal now includes two values, how do you suggest we go about the thresholding? Do we add the two values and threshold as a percentage of the total?
Thank you for your help,
Anna
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Anna Slagle
Post-Baccaulaureate IRTA
Unit on Multimodal Imaging Genetics (UMIG)
CBDB—GCAP—NIMH—NIH
10 Center Dr,
Rm. 3C205
Bethesda, MD 20892
Phone: (301) 435-4599
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