Abstract #3928

ORBITAL FAT VOLUMETRY AND FAT FRACTION MEASUREMENT USING ITERATIVE DECOMPOSITION OF WATER AND FAT WITH ECHO ASYMMETRY AND LEAST-SQUARES ESTIMATION-FAST SPIN ECHO (IDEAL -FSE)

Keizo Tanitame¹, Yuji Takahashi², Yoko Kaichi³, Akira Naito¹, and Kazuo Awai³

¹Radiology, Chugoku Rosai Hospital, Kure, Japan, ²Clinical radiology, Hiroshima University Hospital, Hiroshima, Japan, ³Diagnostic Radiology, Hiroshima University Hospital, Hiroshima, Japan

We believe that the quantitative evaluation of orbital fat proliferation and edema is useful for diagnosing and monitoring Graves’ ophthalmopathy. We demonstrate the feasibility of orbital fat volumetry and fat fraction measurement using iterative decomposition of water and fat with echo asymmetry and least-squares estimation-fast spin echo (IDEAL-FSE) and analyze preliminary data from healthy adults.

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