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Abstract #0762

Zero Echo Time (ZTE) Imaging with Anisotropic Field-Of-View

Cheng Li1, Alan C. Seifert1, Jeremy F. Magland1, Felix W. Wehrli1

1Laboratory for Structural NMR Imaging, Department of Radiology, University of Pennsylvania, Philadelphia, PA, United States

Relative to ultrashort echo-time (UTE), zero echo time (ZTE) imaging offers higher SNR and reduced image blurring for short-T2 imaging. However, ZTE imaging is time-consuming since it is inherently 3D and a complementary scan is needed to fill the missing central k-space portion. In this work, we designed a ZTE sequence with anisotropic filed-of-view (FOV) tailored to the elongated shape of the target anatomy to reduce the scan time. Point-spread function simulation verified the intended FOV shape. Both proton phantom imaging and ex-vivo cortical bone phosphorus imaging demonstrates the practicality of anisotropic FOV ZTE imaging.