Shu-Wei Sun1,2
1Biophysics &
Bioengineering, Loma Linda University, Loma Linda, CA, United States; 2Radiation
Medicine, Loma Linda University, Loma Linda, CA, United States
Diffusion Tensor Imaging (DTI) is achieved by collecting a series of Diffusion Weighted Images (DWI) with different diffusion weighted vectors. For each DWI, it is usually acquired with multiple repetitions to boost the signal to noise ratio. On may perform k-space average or image-space average to boost the signal to noise ratio for each DWI. In this study, we compared DTI maps of mouse brains in vivo using k-space average, image-space average, and no average approaches. K-space average provided the least contrast for presenting white matter on RA maps.