Diffusion MRI data with 32 acquisitions

1

Hi,

In a .nii diffusion MRI file there are 32 acquisitions of the image with varying values of bx, by and bz. Does this image fall under HARDI ?

2

HARDI requires the acquisition of over 50 gradient directions at high b-value, while DTI only requires 6 directions at lower b-values. It is possible that a tool like Probtrackx might do a reasonable. job of discriminating fiber crossings, but your data sounds insufficient for the brand-name HARDI/

3

Hi @Chris_Rorden thanks for the clarification. So for acquisitions over 50 directions with high b value we refer it to as HARDI Data. What class does the data with 32 different acquisitions with a b value of 1000 falls under?