Hi,

I'm trying to coregister trk-data to highres anatomical data. The registration matrix is determined using tkregister2 using e.g. the MPRAGE data set as target and the dti_fa as movable. The subsequent realignment using flirt on the volumetric data is as good as expected. If I fdo apply the same registration matrix to the fibres using track_transform the fibers have a fliped L/R orientation, regardless if I use flirt or the tkregister reg-type file.

If you like I can send you the data.

Thanks and regards,

Daniel