Dear All, In FS6.0.0, this flag is added to manually adjust watershed threshold instead of its automatic calculation. I went back to the original paper by Segonne et al, and I could identify the prefllooding height h and the post watershed threshold t. I assume the flag refers to the latter. Since the threshold varies between subjects, where is it specified in the log file of a recon-all run? Also, could you indicate a (narrow) range one could start with if trying to manually adjust a run, based on your experience? Also, what is the watershed direction based on t (higher t values lead to more aggressive dura removal, or the other way around?
Thank you very much, Octavian
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