Abstract #1213

3D MR Elastography: Exploring Quality Assurance Measures

Shan Cai^1,2, Jens Tellman^1,2, Christian Simonsson^1,2,3, Wolf Bartholomä^1,4, Jonatan Eriksson^1,2, Nils Dahlström^1,4, Stergios Kechagias⁵, Patrik Nasr⁵, Mattias Ekstedt⁵, Ralph Sinkus⁶, and Peter Lundberg^1,2

¹Center for Medical Imaging Science and Visualization, Linköping University, Linköping, Sweden, ²Department of Medical Radiation Physics, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden, ³Department of Biomedical Engineering, Linköping University, Linköping, Sweden, ⁴Department of Radiology in Linköping, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden, ⁵Department of Gastroenterology and Hepatology, and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden, ⁶School of Biomedical Engineering and Imaging Science, King’s College London, London, United Kingdom

Synopsis

Keywords: Liver, Elastography, 3D MREMagnetic resonance elastography (MRE) is a powerful tool that can grade liver fibrosis non-invasively. In comparison with 2D MRE, 3D MRE can provide additional biomechanical tissue parameters for evaluating liver fibrosis. However, there is a great need to develop a quality assurance protocol for 3D MRE measurements. In this study, we have investigated quality assurance parameters for a 3D MRE research system and identified the cut-off values of the quality parameters to assign the 3D MRE data into three quality categories. A confidence map was constructed based on the evaluation of these quality parameters.

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