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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