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Abstract #3648

Normal range and Reproducibility of multi-frequency MR Rheology of healthy liver at 3.0T MRI

Yong Eun Chung 1 , Hye-Jeong Lee 1 , Mi-Suk Park 2 , and Myeong-Jin Kim 2

1 Radiology, Yonsei University College of Medicine, Seoul, ., Korea, 2 Radiology, Yonsei Univeristy College of Medicine, Seoul, ., Korea

We tried to assess the normal value of shear modulus (Gd), loss modulus (Gl) and complex modulus (G*) of the healthy liver, and evaluate their reproducibility at 3.0T MRI. Multi-frequency MR rheology with transducer frequency of 28Hz, 56Hz and 84Hz was acquired in 60 healthy volunteers. Three modulus were calculated from central 4 slices, central 2 slices and the upper most 1 slice in each frequency. The reproducibility of MRR was higher at lower transducer frequency and MRR modulus should be calculated from the data which were obtained from at least central 2 slices of MRR.

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