Prospective motion correction using principal axes computation from moments of spatial projections
Bajaj N, Saranathan M
Indian Institute of Science
Prospective motion correction is a challenging problem in MRI. Navigator echoes have been successfully demonstrated for in-plane translation, rotation and periodic motion. In this work, a novel, fast technique based on principal axes computation using spatial moments is explored to effect prospective correction of rigid-body motion (rotation and translation). The algorithm has been tested for both 3D imaging on synthetic phantom data as well as self navigated radial 2D imaging on both phantom and MR brain data.