Abstract #3638
Tiny Golden Angles: A Small Surrogate for the Radial Golden Angle Profile Order
Stefan Wundrak 1,2 , Jan Paul 1 , Johannes Ulrici 2 , Erich Hell 2 , and Volker Rasche 1
1
Ulm University, Ulm, Baden-Wrttemberg,
Germany,
2
Sirona
Dental Systems, Bensheim, Hessen, Germany
In golden angle radial MRI a constant azimuthal radial
profile spacing of 111.246... guarantees a nearly
uniform azimuthal profile distribution in k-space for an
arbitrary number of radial profiles and was recently
used in various real-time imaging methods. However, in
combination with balanced SSFP sequences the large
azimuthal angle increment may lead to strong image
artifacts, due to the varying eddy currents introduced
by the rapidly switching gradient scheme. We introduce a
sequence of smaller angles (49.750, 32.039... ,
27.198... , 23.628..., ... ), based on a generalized
Fibonacci sequence, that guarantee the same sampling
efficiency as the golden angle.
This abstract and the presentation materials are available to members only;
a login is required.
Join Here
