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Abstract #0385

Simultaneous quantification of liver perfusion and hepatocyte uptake function with dynamic gadoxetate-enhanced MR imaging in patients with chronic liver diseases

Benjamin Leporq 1 , Sabine Schmidt 2 , Catherine Pastor 1,3 , Jean Luc Daire 1 , and Bernard Edgar Van Beers 1,4

1 Center of research on inflammation, Paris 7 University; INSERM U1044, Paris, France, 2 Department of Radiology, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland, 3 Laboratoire de Physiopathologie Hpatique et Imagerie Molculaire, Hpitaux Universitaires de Genve, Geneva, Switzerland, 4 Department of Radiology, Beaujon University hospital Paris Nord, Clichy, France

This study aims to evaluate the feasibility of quantifying simultaneously the liver perfusion and hepatocyte uptake function with dynamic gadoxetate-enhanced MR imaging in patients with chronic liver diseases. Dynamic imaging was performed and gadoxetate kinetics was modeled with a dual input dual compartment uptake model. Both increase of hepatic artery fraction of liver perfusion and decrease of hepatocyte gadoxetate uptake in patients with chronic liver diseases were observed. These results suggest that pharmacokinetic parameters at dynamic gadoxetate-enhanced MR imaging have the potential to become imaging biomarkers of both liver perfusion and hepatocyte function in patients with chronic liver diseases.

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