From the topic of “Dense connectomes from CSD-ACT-SIFT”: “For the second algorithm, just about any trajectory through the white matter is possible. So at some point after an adequate number of streamlines have been generated, there will be at least one streamline connecting every single possible pair of nodes, and the network density will be 100%.”
Dear MRtrix team,
I want to calculate the shortest path length between one given pair of nodes. Before doing this, I thought I had to threshold the matrix (connectomes.csv) from CSD-ACT-SIFT(10M) and tck2connectome without -scale_* options to assign each value of the elements less than proposed threshold to 0 and to leave each value of the elements not less than proposed threshold intact; that is to say, when the number of streamlines (NOS) connecting one given pair of nodes reached how much, there would be a structural connection between them.
Could you help me figure out how to choose the threshold value or why I thought it wrong? Thanks very much!
All the best,
Hui Zhang