The second aim is to test the efficiency of the new accelerated diffusion MRI technique from phantom and in healthy human. Finally to validate the hypothesis that the new accelerated diffusion MRI technique could produce a new biomarker for HD, patients with Huntington Disease will be recruited. The diffusion index will be calculated using accelerated acquisition. The diagnostic performance will be evaluated for data reconstructed with and without acceleration. The correlation with the disease severity will be assessed. A risk management report will be concluded at the end of project execution for registration in the department of health. The acceleration diffusion MRI could provide new insight to the etiology of the disease. The in-line image reconstruction platform could be used for pediatric or psychiatric patients who cannot hold still in the scanner for a prolonged period and in patients with movement disorders.