[Mrtrix-discussion] tck2connectome -invnodevolume metric

[Roine Timo]

Hello everyone,

Another question regarding tck2connectome: 
How is the invnodevolume metric calculated and could it be used to calculate the density-weighted connectivity? 

In Hagmann et al. 2008 this kind of weighting is calculated with respect to average cortical surface area of the end point nodes (number of connections per unit surface). When using WM-GM interface seeding and/or SIFT, I believe the correction term 1/l(f) (in Hagmann et al., 2008) for the bias in tractography towards longer fibers is not needed anymore.

Thanks in advance!

Cheers,
Timo

PhD candidate,
iMinds-Vision Lab, University of Antwerp, Belgium
timo.roine at uantwerpen.be