FIGURE 1:
DW-DESS-Cones pulse sequence (a) and subset of readouts from full trajectory (b). A cone-out is acquired in echo 1 with the same cone-in acquired in echo 2, which is the echo that exhibits diffusion-weighting. The imaging gradients Gx, Gy, and Gz reflect the specific imaging parameters (256 × 256 matrix, 360 mm field of view, 64 slices, 3 mm thickness) utilized in this implementation (a). The cones trajectory provides a more efficient coverage of k-space in comparison to a purely radial trajectory. The primary advantage of cones (b) for this work is the averaging of motion effects due to the sampling of the center of k-space for each readout