Fig 2. Thresholded binary images resulting from source diffusion-weighted images (DWI) in 2 gradient directions at the top left and center, and from source high-resolution diffusion-weighted images (DWI-HR) at the bottom left and center. Note the greater anteroposterior shift on the image resulting from the DWI source images subtraction at the top right compared with the one resulting from the dual-echo corrected DWI-HR source images at the bottom left.