Abstract #2625

Feasibility of 4D-Flow MRI of the Liver using Pencil Beam Navigator for Respiratory Gating and Compressed Sensing

Markus Karlsson¹, Jens Tellman¹, Fredrik Testud², Ning Jin³, Nils Dahlström¹, and Peter Lundberg¹

¹Department of Medical and Health Sciences, and Center for Medical Image Science and Visualization, Linköping University, Linköping, Sweden, ²Siemens Healthcare AB, Malmö, Sweden, ³Siemens Medical Solutions USA, Inc, Cleveland, OH, United States

Four-dimensional flow magnetic resonance imaging of the liver can be used to characterize the blood flow in the portal vein. This could be a useful tool to evaluate portal hypertension. However, four-dimensional flow magnetic resonance imaging typically requires a long acquisition time, which limits clinical usefulness. We therefore investigated if compressed sensing can be used to shorten the acquisition time. We found that the acquisition time could be reduced to 8-10 minutes, without impacting the flow measurements.

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