Meeting Banner
Abstract #4081

Fast and Accurate 3D Rigid-Body Motion Information From Spherical Lissajous Navigators at Small K-Space Radii

Richard Buschbeck1 and N. Jon Shah1,2

1Institute of Neuroscience and Medicine - 4, J├╝lich Research Centre, Juelich, Germany, 2RWTH Aachen University, Faculty of Medicine, Department of Neurology, JARA, Aachen, Germany

A new navigator concept is presented which enables the measurement of accurate rigid-body motion information from spherical navigators at extremely small k-space radii. This is achieved by using a 3D Lissajous navigator trajectory and a rotation estimation algorithm known from computer vision. The new method provides motion information with sufficient accuracy and precision for many motion correction techniques and significantly outperforms current spherical navigator methods in terms of acquisition and computation time.

This abstract and the presentation materials are available to members only; a login is required.

Join Here