Abstract #0239

Ultrashort Echo Time Double Echo Steady State (UTE-DESS) Imaging with Eddy Current Compensation

Hyungseok Jang¹, Jiyo S Athertya¹, Yajun Ma¹, Alecio F Lombardi¹, Saeed Jerban¹, Christine B Chung^1,2, Eric Y Chang^1,2, and Jiang Du¹

¹Radiology, University of California, San Diego, San Diego, CA, United States, ²Radiology Service, Veterans Affairs San Diego Healthcare System, San Diego, CA, United States

Synopsis

The double echo steady state (DESS) sequence has been investigated extensively due to its short scan time and flexible image contrast achieved from a combination of a free induction decay (FID)-like S+ signal and simulated echo-based S- signal. Ultrashort echo time-based DESS (UTE-DESS) has recently been proposed for imaging of short T₂ tissues in the human knee joint, but the effect of eddy currents in this technique has not yet been investigated. In this study, we demonstrate the effects of B₀ and linear eddy current and elucidate the importance of eddy current compensation (ECC) for reliable UTE-DESS imaging.

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