Abstract #0883
Motion Correction of EPI sequences using their intrinsic high-frequency content
Maximilian Haeberlin 1 , Alexander Aranovitch 1,2 , Lars Kasper 1 , Christoph Barmet 1 , and Klaas Paul Pruessmann 1
1
Institute for Biomedical Engineering,
University and ETH, Zurich, Zurich, Switzerland,
2
Department
of Physics, Technische Universitt Mnchen, Bavaria,
Germany
Neuro applications such as fMRI, DWI or PWE imaging that
use EPI readouts for image encoding often suffer from
rigid body motion of the head. We present a method that
uses the high frequency content of the EPI trajectory to
track the positions of a field probe array attached to
the head that is robust against field fluctuations and
is combined with concurrent field monitoring in the head
frame of reference. We report a localization precision
of 12 micrometers and show successful continuous slice
tracking during a 3-minute EPI acquisiton well suited
for fMRI.
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.
