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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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