Robert Grimm1,
Christoph Forman2, Jana Hutter1, Berthold Kiefer3,
Joachim Hornegger1, Kai Tobias Block4
1Pattern
Recognition Lab, FAU Erlangen-Nuremberg, Erlangen, Germany; 2Pattern
Recognition Lab, Friedrich-Alexander-University Erlangen-Nrnberg, Erlangen,
Germany; 3Siemens Healthcare, Erlangen, Germany; 4Department
of Radiology, NYU Langone Medical Center, New York City, NY, United States
In radial stack-of-stars GRE imaging, distortions of the magnetic B0 field and gradient fields distant from the isocenter can cause significant streaking artifacts. The image quality can be severely degraded by coils that contribute mostly artifacts but little image information.