Figure 1

Motion correction of images in a diffusion-encoded 3D volume. (A) The diffusion encoded volume consisted of a slice at the midventricular level, a more basal slice and a more apical slice. Radial scanlines with an angular resolution of 5 degrees were acquired and used for matching frames at each level. (B) Overlay of two short-axis slices, one depicted in grayscale and the other in a hot colormap, before (original) and after motion correction. Alignment of the images and their SNR (C) is significantly improved (p<0.01, Mann-Whitney) by motion correction (black bars = corrected; red bars = original).