Abstract #1751
Spiral-CEST Encoding with Spectral and Spatial B0 Correction
Sugil Kim 1,2 and Jaeseok Park 3
1
Department of Brain and Cognitive
Engineering, Korea University, Seoul, Korea,
2
Center
for Neuroscience Imaging Research, Institute for Basic
Science (IBS), Sungkyunkwan University, Suwon, Korea,
3
Biomedical
Imaging and Engineering Lab., Department of Global
Biomedical Engineering, Sungkyunkwan University, Suwon,
Korea
Chemical exchange saturation transfer (CEST), which
exploits saturation transfer induced proton exchange and
its corresponding, indirect loss of water signals, has
been shown to provide a novel contrast mechanism in MRI
[1,2]. However, CEST MRI is highly vulnerable to
magnetic field inhomogeneities. To address this problem,
it often requires multi-spectral acquisitions
(z-spectrum), and hence leads to prohibitively long
imaging time [3]. In this work, we propose Spiral-CEST
encoding with spectral and spatial B0 correction under
the hypothesis that in the presence of magnetic field
inhomogeneities spiral encoding induced image blurring
in the spatial dimension makes no contribution to a DC
frequency shift in the z-spectral dimension due to the
spatially, slowly varying field map.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Click here for more information on becoming a member.
