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Abstract #0444

Comparison of 2D and 3D MR Liver Elastography in 600 Patients

Bogdan Dzyubak1, Kevin J. Glaser1, Sudhakar K. Venkatesh1, and Richard L. Ehman1

1Radiology, Mayo Clinic, Rochester, MN, United States

2D Magnetic Resonance Elastography (MRE) is a validated method for staging liver fibrosis via liver stiffness measurements produced by introducing and imaging acoustic waves. Newer 3D MRE additionally images waves propagating out-of-plane. This retrospective study compared 2D and 3D liver MRE stiffness measurements across 600 patient exams. The two methods had excellent agreement, with 3D MRE yielding 6% lower stiffness and having lower failure rate. 3D MRE, which has the same acquisition time, is a good alternative for liver imaging as it does not suffer from out-of-plane propagation bias and has the added potential to characterize smaller abdominal organs.

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