Abstract #0309

UTE 3D Cones Trajectory with T1 weighted imaging for MSK applications

Robert Nikolov ¹ , Michael Carl ² , Eric Chang ^1,3 , Christine Chung ^1,3 , Graeme Bydder ¹ , and Jiang Du ¹

¹ Radiology, University of California, San Diego, San Diego, California, United States, ² GE Healthcare, Waukesha, Wisconsin, United States, ³ Radiology, VA San Diego Healthcare System, La Jolla, California, United States

In this study we demonstrate the use of a novel ultra short echo time (UTE) T ₁ sequence that combines a three-dimensional cones sequence preceded by a spin-lock preparation pulse for T ₁ contrast . T ₁ contrast is compared between this 3D sequence and a 2D radial sequence for: i) spherical CuSO4 phantom ii) ex-vivo meniscus sample and iii) in-vivo imaging of the human knee joint. Meniscus and tibial plateau values are reported as 18+/- 4ms and 36+/-3 ms respectively. The SNR efficiency and reduced eddy current artifacts afforded by the 3D cones sequence provides a robust sequence within a clinical relevant imaging time.

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