Abstract #4902

Differentiation of thymic hyperplasia from thymic tumors with MR quantitative fat fraction technique in adulthood

Xiu-Long Feng¹, Yu-Chuan Hu¹, Lin-Feng Yan¹, Shi-jun Duan¹, Gang-Feng Li¹, Xiao-Cheng Wei², Guang-Bin Cui¹, and Wen Wang¹

¹Department of Radiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, People's Republic of China, ²MR Research China, GE Healthcare China, Beijing, China

MRI estimated proton density fat fraction (MRI-PDFF) gives quantitative information of fat deposition in soft tissue. This study retrospectively evaluate the effectiveness of MRI-PDFF for distinguishing thymic hyperplasia from thymic tumors. As a conclusion, a significant higher mean fat fraction values were found in thymic hyperplasia compared to thymic tumors. MRI-PDFF technique could be used to differentiate thymic hyperplasia from thymic tumors before treatment.

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