1Department of Imaging Sciences, University of Rochester, Rochester, NY, United States, 2Rochester Center for Brain Imaging, Rochester, NY, United States
Ultrashort
echo-time imaging has been explored for the study of short T2* tissues. Most ultrashort TE sequences utilize 3D
radial center-out k-space sampling. While
they are potentially useful for many important applications, they are susceptible to various
image artifacts. This abstract describes
the appearances, causes and mitigations of some potential artifacts, which include
those caused by long readout length, high gradient field, insufficient number of
radial projections, off-centered imaging and signal wrap-around. An understanding of these artifacts
will help in protocol setting and the identification of related problems. This article should benefit the users of
ultrashort TE imaging.
