Christoph Strecker1, Andreas Harloff2,
Michael Markl3
1Department of Neurology, University
Hospital, Albert-Ludwigs-University , Freiburg, Germany; 2Department
of Neurology, University Hospital, Albert-Ludwigs-University , Freiburg ,
Germany; 3Department of Radiology, Medical Physics, University
Hospital, Albert-Ludwigs-University , Freiburg, Germany
Synopsis:
It was the purpose of this study to evaluate the performance of
flow-sensitive 4D MRI of the thoracic aorta at 1.5T and 3T. 10 healthy
volunteers were examined with 4D-MRI at both field strengths with regard to
velocity noise, 3D flow visualization and quantitative flow analysis. 3T was
superior regarding reduced velocity noise, improved quality of blood flow
visualization, and quantification of peak velocities. It could be shown that
flow-sensitive 4D-MRI was feasible at both field strengths and can provide
comprehensive information of aortic 3D hemodynamics and geometry.
Keywords