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Abstract #2972

Simple improvement method of uniformity of MR elastography on liver

Yuki Kanazawa1, Yuki Matsumoto2, Hiroaki Hayashi1, Tsuyoshi Matsuda3, Mungunbagana Ganbold4, and Masafumi Harada4

1Tokushima University, Tokushima, Japan, 2School of Health Sciences, Tokushima University, Tokushima, Japan, 3MR Applications and Workflow, Asia Pacific GE Healthcare Japan Corporation, Hino, Japan, 4Department of Radiology and Radiation Oncology, Tokushima University, Tokushima, Japan

The purpose of this study was to development and evaluate a dual passive driver system to improve non-uniformity of liver MRE. This study was performed using a phantom and a volunteer. The standard deviation on unwrapped phase image (S.D.unwrap) for the dual driver system has shown higher values than that of a single system. Moreover, the shear stiffness value of a system having a high S.D.unwrap showed the highest correlation with actual measurement values (P < .05). In conclusion, MRE with a dual driver system may render it possible to obtain more detailed information for the evaluation of liver conditions.

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