 |
 |
Hi Daniela, Intuitively, I don't think this is correct: if you average two images taken with diffusion gradients in exact opposite directions, the average of the diffusion vectors will be zero. However, the average of the images will not. I guess if your rotated vectors are pointing almost along the same direction, the error you will get from averaging directions and images will be very small. Why don't you just do the analysis on a dataset with 72 directions? -Pablo