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Abstract #0079

Partial velocity-compensated diffusion encoding for combined motion compensation and residual vessel signal suppression in liver DWI

Anh T Van1, Barbara Cervantes1, Tetsuo Ogino2, Johannes M Peeters3, Andreas Hock4, Ernst J Rummeny1, Rickmer Baren1, and Dimitrios C Karampinos1

1Department of Diagnostic and Interventional Radiology, Technical University of Munich, Munich, Germany, 2Philips Japan, Tokyo, Japan, 3Philips MR Clinical Science, Best, Netherlands, 4Philips Healthcare, Hamburg, Germany

Despite its strong clinical significance in lesion detection and tumor staging, liver DWI remains challenged by its strong sensitivity to motion effects. Motion-compensated diffusion encoding schemes have been recently proposed to improve DW liver signal homogeneity especially in the left liver lobe, a region typically affected by cardiac motion. However, motion-compensated diffusion encoding is associated with hyperintense vessel signal even at high b-values, which can obscure lesion detection. The present work proposes a partial velocity-compensated diffusion encoding for combined motion compensation and residual vessel signal suppression in liver DWI.

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