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Abstract #4090

Human Bile Phosphatidylcholine Contributes to 31P MRS Hepatic Signal at 2.06 Ppm.

Marek Chmelk1, Ladislav Valkovic1, 2, Peter Wolf3, Wolfgang Bogner1, 4, Martin Gajdosik1, Stephan Gruber1, Michael Krebs3, Siegfried Trattnig1, Martin Krssk, 13

1MR Centre of Excellence, Department of Radiology, Medical University of Vienna, Vienna, Austria; 2Department of Imaging Methods, Institute of Measurement Science, Slovak Academy of Sciences, Bratislava, Slovakia; 3Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria; 4Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General , Boston, MA, United States

31P MR hepatic signal at 2.06ppm was previously assigned to phosphoenolpyruvate (PEP) but contribution to this signal from phosphatidylcholine (PtdC part of lecithin) which is dominant metabolite in bile should also be considered.