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Abstract #3315

Water Selective High Resolution Imaging of Short T2 Components of the Knee at High and Ultra High Field Strenghts

Xeni Deligianni1, Peter Br2, Klaus Scheffler3, 4, Siegfried Trattnig5, Oliver Bieri1

1Division of Radiological Physics - Department of Radiology and Nuclear Medicine, University of Basel Hospital, Basel, NA, Switzerland; 2Siemens (Customer Services- Application MR) , Erlangen, Germany; 3MTC Department, MPI for Biological Cybernetics, Tbingen, Germany; 4Dept. Neuroimaging and MR-Physics, University of Tbingen, Tbingen, Germany; 5Medical University of Vienna

Short echo time sequences can produce signal from short T2 components, but require long reconstruction times and are sensitive to the gradient system imperfections. A standard spoiled gradient echo sequence was adapted with a variable echo time scheme and highly asymmetric Cartesian sampling in order to provide fast short echo time and high resolution and contrast images, while the reduced scan time offers the possibility to use binomial RF pulses in order to achieve fat suppression at clinically adequate scan times. The benefits of this approach were demonstrated in a 3T as well as a 7T MR scanner.

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Keywords

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