English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Conference Paper

Influence of cerebrospinal fluid on specific absorption rate generated by 300 MHz MRI transmit array

MPS-Authors
/persons/resource/persons19793

Kozlov,  Mikhail       
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

/persons/resource/persons23475

Bazin,  Pierre-Louis
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;
Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

/persons/resource/persons19864

Möller,  Harald E.
Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

/persons/resource/persons147461

Weiskopf,  Nikolaus
Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Kozlov, M., Bazin, P.-L., Möller, H. E., & Weiskopf, N. (2016). Influence of cerebrospinal fluid on specific absorption rate generated by 300 MHz MRI transmit array. In Proceedings of 10th European Conference on Antennas and Propagation (EuCAP) (pp. 1-5). Piscataway: IEEE. doi:10.1109/EuCAP.2016.7481666.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-4FB4-5
Abstract
We investigated how cerebrospinal fluid (CSF) simulated as a single electrically connected object and variation of the geometry of an anatomical human head model influence the transmit and safety excitation efficiencies of a 7T magnetic resonance imaging transmit array. A dual-row array was excited in circularly polarized (CP) and radiofrequency (RF) shimming modes. In both excitation modes, CSF partially shielded the brain from the array RF field. It resulted in decreases of both transmit and safety excitation efficiencies. A smaller head size resulted in larger transmit and safety excitation efficiencies for the CP excitation mode.