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Abstract #1920

Characterization of Perfluorocarbon Relaxation Times and Optimization of Fluorine-19 MRI at 3 Tesla

Roberto Colotti 1,2 , Christine Gonzales 3 , Juerg Schwitter 3 , and Ruud B. van Heeswijk 1,2

1 Department of Radiology, University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, 2 Center for Biomedical Imaging (CIBM), Lausanne, Switzerland, 3 Division of Cardiology and Cardiac MR Center, Department of Internal Medicine, University Hospital of Lausanne (CHUV), Lausanne, Switzerland

The relaxation times of a perfluoropolyether perfluorocarbon (PFC) that is used for fluorine-19 MRI were determined on a 3T clinical scanner under different physiological conditions. The results were used in Bloch equation simulations to optimize a turbo spin echo (TSE) pulse sequence and to evaluate the loss of acquisition efficiency due to the varying relaxation times observed under different physiological conditions.

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