Key points are not available for this paper at this time.
The addition of ky≈0 navigator views to detect anterior-posterior prostate (peristalsis-induced) motion to the end of each echo train for a 2D T2-weighted acquisition stack with slice-profile recovery reconstruction is investigated. ROVir virtual coils are used to focus the spatial sensitivity in the phase direction of the navigator response on the small, central prostate region. Mutual information is used to register these navigators across the acquisition, with the resulting movement time course used to correct the acquired data. Results both in motion controlled phantom and human studies are discussed.
Borisch et al. (Wed,) studied this question.