Effect of diffusion time and diffusion gradient strength on the mean diffusivity of DTI in healthy human brain
Gao S, Ren H, Bao S
Beijing Key Laboratory of Medical Physics and Engineering, Peking University
The effects of diffusion time on ADC and MD were controversial in previous studies. Moreover, the effect of the diffusion gradient strength has received little attention. In this study, a new experimental protocol is designed to evaluate the effect of the two parameters. The results show that the varying diffusion time or diffusion gradient strength produces a significant effect on MD, which could not be explained by previous theory.