Abstract #1340

T1 weighted 3D Cube with Dixon water-fat separation for imaging of the orbits

Ken-Pin Hwang¹, Jingfei Ma¹, Ping Hou¹, Ho-Ling Anthony Liu¹, Kang Wang², and T. Linda Chi³

¹Department of Imaging Physics, The University of Texas M.D. Anderson Cancer Center, Houston, TX, United States, ²MR Applications and Workflow, General Electric Healthcare, Waukesha, WI, United States, ³Department of Diagnostic Radiology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, United States

2-point Dixon water-fat separation is implemented in a Cube (3D FSE) sequence. It is compared with IR-FSPGR and Cube with fat saturation for post-contrast T1-weighted high resolution imaging of the orbits. Dixon water-fat separation provided even fat suppression through the imaging volume and maintained the signal efficiency of the other techniques. Optic nerve was well delineated even through areas of high susceptibility, and large vessels were well suppressed relative to nearby structures. We thus demonstrate a promising new technique for evaluating disease in a challenging area with fine structures and high susceptibility.

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