I've been running probtrack and trying to 'clean up' some extraneous
streamlines using the exclusion mask function. Unfortunately, I keep
getting empty results (a file is created but all pixels are zero).
Anatomically and visually, it doesn't seem like my exclusion masks should be
eliminating -all- of the orginal streamlines. I've tried this with a couple
fascicles and still get empty files. Any suggestions?
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