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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