Dear experts,
I am trying to run recon workflow on qsiprep preprocessed images. We want to create a custom workflow based on mrtrix_singleshell_ss3t_noACT template as we plan to use a deterministic algorithm and a different seeding option. Swapping tractography algorithm seems straightforward, however there seems to be no option to pass a parameter for seeding mechanism. Looking at the workflow in more detail, it seems that dynamic seeding is ingrained within the workflow. Is there a way we can pass a parameter that may overwrite this? We have a diseased cohort and there might be issue with tissue damage hence dynamic seeding may do more harm than good. I am planning to modify tckgen node as follow, please advice if I can add a suitable parameter to disable dynamic seeding.
{
"name": "track_SD_STREAM",
"software": "MRTrix3",
"action": "tractography",
"output_suffix": "sdstream",
"input": "ss3t_csd",
"parameters": {
"use_5tt": false,
"use_sift2": true,
"tckgen":{
"algorithm": "SD_STREAM",
"select": 5e6,
"downsample": 3,
"max_length": 250,
"min_length": 30,
},
"sift2":{}
}
}
Thank you,
Sneha