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Morning, I'm looking to change somehow my output of probtrackx. I have a bottleneck in processing which is the reading of .nii.gz files (unzip->read data->del unzipped). I have refined every other aspect of my scripts but get stuck at this point, resulting in processing times of 3-4 days + (17000-30000 files) purely from file reading (in matlab). I convert and handle all my dti data in array format for memory and speed (so purely value and location in seed source space (where value is >0) enabling simple reconstruction where required). Is there anyway to roll this into the probtrackx pipeline, maybe outputting the info as a .txt or similar? Thanks, - Chris