Abstract #0360
FMRI using a 3D radial-Cartesian trajectory: spatio-temporal tunability and artifact correction
Nadine N Graedel 1 , Mark Chiew 1 , Jennifer A McNab 2 , and Karla L Miller 1
1
FMRIB Centre, University of Oxford, Oxford,
Oxfordshire, United Kingdom,
2
Department
of Radiology, Stanford University, California, United
States
We propose the use of a 3D hybrid radial-Cartesian
trajectory for functional MRI, in which the readout EPI
planes are rotated around kz according to an angle
scheme based on the golden ratio. This acquisition
strategy facilitates correction for many sources of
temporal fluctuation (such as motion and physiological
noise) and allows flexible post-acquisition definition
of spatio-temporal resolution. We implemented example
corrections for motion and physiological noise, which
allowed recovery of data corrupted by severe motion.
Additionally we show visual fMRI data reconstructed at
different temporal resolutions.
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.
