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Abstract #3784

Initial Experience with Inline Evaluation of Liver Stiffness using Magnetic Resonance Elastography in Hemochromatosis Patients

Stephan A.R. Kannengiesser1, Cathy Cazin2, Michel Lapp2, Khalid Ambarki3, Berthold Kiefer1, and Valérie Laurent2,4
1MR Application Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany, 2Department of Radiology, CHRU Nancy, Brabois Adults Hospital, Vandoeuvre-lès-Nancy, France, 3Siemens Healthcare SAS, Saint Denis, France, 4IADI, U1254, INSERM, Université de Lorraine, CHRU de Nancy Brabois, Vandoeuvre-lès-Nancy, France

A simple prototype inline mean stiffness evaluation approach for MR Elastography based on anatomical liver segmentation and the confidence map was evaluated in 25 hemochromatosis patients, and compared with manual evaluation by two readers according to QIBA guidelines. Pairwise comparisons were found to be of similar statistics: mean±std relative difference -3.40±5.10% and -0.69±6.72% for reader1 vs. reader2 and manual (average of readers) vs. inline. The presented approach is promising given the particular patient cohort and limited stiffness range, but further evaluation is needed.

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