Meeting Banner
Abstract #2558

The Correction of Motion-Induced Coil Sensitivity Miscalibration in Parallel Imaging with Prospective Motion Correction

Uten Yarach 1 , Daniel Stucht 1 , Frank Godenschweger 1 , and Oliver Speck 1

1 Department of Biomedical Magnetic Resonance, Otto-von-Guericke University, Magdeburg, Sachsen-Anhalt, Germany

Unlike the retrospective technique, prospective motion correction (Mo-Co) can avoid spin history effects as well as k-space inconsistencies. However, in case of large motion during multi-coil acquisition, the coil sensitivities that change relative to the object are one of the most considerable residual artifact causes in prospective Mo-Co. In this study, we investigate the effect of coil sensitivity variations on parallel prospective Mo-Co data if only initial coil sensitivities are known. We also show that if a small number of central k-space can be acquired when motion occurred, they are sufficient for estimating coil sensitivities to correct abovementioned artifact.

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

Join Here