Abstract #4366
Variable Temporal Resolution Reconstruction for Golden-Angle Radial Sparse Parallel DCE-MRI
Robert Grimm 1 , Dominik Nickel 2 , Jana Hutter 1 , Christoph Forman 1 , Berthold Kiefer 2 , Joachim Hornegger 1 , and Kai Tobias Block 3
1
Pattern Recognition Lab, FAU
Erlangen-Nuremberg, Erlangen, Germany,
2
MR
Application Development, Siemens AG, Healthcare Sector,
Erlangen, Germany,
3
Department
of Radiology, NYU Langone Medical Center, New York City,
New York, United States
Modern imaging techniques for Dynamic Contrast Enhanced
MR Imaging (DCE-MRI) can achieve high temporal
resolution by exploiting correlation between different
time-points in the reconstruction. In order to reduce
the vast number of images as well as the reconstruction
time while keeping the relevant clinical information, we
propose to use a variable temporal resolution for the
reconstructed time-points. Specifically, this is
implemented for Golden-Angle Radial Sparse Parallel
DCE-MRI and illustrated for prostate and liver imaging.
In these applications the time resolution is critical in
the initial phase after contrast injection and less
important for the pre-contrast and later phases.
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