Abstract #3083
A 24-channel shim array for real-time shimming of the human spinal cord: Characterization and proof-of-concept experiment
Ryan Topfer 1 , Kai-Ming Lo 2 , Karl Metzemaekers 2 , Donald Jette 2 , Hoby P. Hetherington 3 , Piotr Starewicz 2 , and Julien Cohen-Adad 1,4
1
Institute of Biomedical Engineering, Ecole
Polytechnique de Montral, Montreal, QC, Canada,
2
Resonance
Research Inc., Billerica, MA, United States,
3
Department
of Radiology, University of Pittsburgh, Pittsburgh, PA,
United States,
4
Functional
Neuroimaging Unit, CRIUGM, Universit de Montral,
Montreal, QC, Canada
A novel shim system is introduced for the purpose of
real-time shimming in spinal imaging to compensate for
respiratory-related distortions of the main field. The
24 independent, rectangular planar shim coils are
embedded within the patient bed table, in close
proximity to the spine of the scanned subject.
Preliminary calibration and proof of concept phantom
experiments are described. Compared to the unshimmed
case, the standard deviation of the field inhomogeneity,
as calculated over 1.1 L volumes of interest, was
reduced by over 30 %.
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.
