Abstract #1811

Potential image artifacts in ultrashort echo-time imaging

Wingchi Edmund Kwok^1,2

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.

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