Abstract #1940

DTI Reconstruction: K-Space Average, Image-Space Average, or No Average

Shu-Wei Sun^1,2

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.