Abstract #3733
Title: A Fast Algorithm to Correct Excitation Profile in Zero Echo Time (ZTE) Imaging
Cheng Li 1 , Jeremy F. Magland 1 , Alan C. Seifert 1 , and Felix W. Wehrli 1
1
Laboratory for Structural NMR Imaging,
Department of Radiology, University of Pennsylvania,
Philadelphia, PA, United States
Zero echo-time (ZTE) sequence is a promising technique
for short-T2 imaging. However, the presence of an
imaging gradient during excitation causes blurring and
shadow artifacts due to limited RF pulse bandwidth. Our
previous work proposed an approach by applying
phase-modulated RF excitation and iterative
reconstruction to correct the artifacts. However, this
iterative method is computationally intensive. In this
work, we developed a fast non-iterative correction
algorithm to dramatically reduce the computation time
while maintaining image quality. Results from phantom
and in vivo scans demonstrate the effectiveness of the
method. The proposed method allows online ZTE
reconstruction with artifact correction on clinical
scanners.
This abstract and the presentation materials are available to members only;
a login is required.
Join Here
