Abstract #1385

Assessment of Fat Fractions of Tongues, Pharyngeal Walls, and Soft Palates by GOOSE and DIXON methods

Ruitian Song¹, Scott N. Hwang², Chris Goode¹, Diana Storment¹, Matthew Scoggins¹, Zachary Abramson¹, Claudia M Hillenbrand³, Belinda Mandrell⁴, Kevin Krull⁵, and Wilburn E. Reddick¹

¹Diagnostic Imaging, St Jude Children's Research Hospital, Memphis, TN, United States, ²Department of Radiology, Penn State Health Milton S Hershey Medical Center, Hershey, PA, United States, ³Research Imaging NSW, University of New South Wales, Sydney, Australia, ⁴Division Nursing Research, St Jude Children's Research Hospital, Memphis, TN, United States, ⁵Department of Epidemiology and Cancer Control, St Jude Children's Research Hospital, Memphis, TN, United States

Synopsis

Among 63 participants, the fat fractions (FFs) were estimated and compared in tongues, posterior pharyngeal walls (PPWs), and soft palates (SPs) using two-point DIXON and GOOSE (Globally Optimal Surface Estimation) methods. DIXON was seriously impaired by B₀ inhomogeneity and underestimated FF relative GOOSE. There was a strong correlation between these two methods in the tongues and SPs, and a weak one in the PPWs. In our opinion, an IDEAL-based method is preferred for estimating fat content. Extra attention is needed when using the two-point DIXON method.

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