b-value and number of directions to acquire
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- Category: How To Acquire DW-MRI Data
- Last Updated: 09 April 2018
- Published: 09 April 2018
- Hits: 2267
- It is recommended to acquire data for DTI analysis with a b-value between 800-1200 s/mm2
- for comparison of mean diffusivity (mean ADC), 3 orthogonal directions are sufficient
- for reconstruction of the diffusion tensor D, at least 6 directions + 1 b0 image are necessary
- for fiber tracking, it is recommended to use at least 20-30 directions, which are equally distributed.