Abstract #4267
Scantime optimized 3D radial Ultra-short Echo Time imaging for breathhold examinations
Karl-Heinz Herrmann 1 , Martin Krmer 1 , and Jrgen R. Reichenbach 1
1
Medical Physics Group, Institute of
Diagnostic and Interventional Radiology I, Jena
University Hospital - Friedrich Schiller University
Jena, Jena, Germany
For spoiled gradient echo 3D radial center out UTE
sequences standard, predictable RF and gradient spoiling
can only be achieved by constant gradient moments every
TR, which requires center-out-in trajectories to remove
the direction dependency. The center-in trajectory
provides acquisition of a second echo, but for many
application the second echo is not required. Naively
using center-out trajectories combined with RF spoiling
and constant spoiler gradients in fixed direction can
lead to stripe artifacts. By extending the duration of
the rotated readouts by a variable, direction dependent
the spoiling is optimized while the TR is simultaneously
minimized for fast radial acquisition.
This abstract and the presentation materials are available to members only;
a login is required.
Join Here
