English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Poster

Does RF spoiling enhance human in-vivo brain MR Current Density Imaging (MRCDI)?

MPS-Authors
/persons/resource/persons83898

Ehses,  P
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

/persons/resource/persons84187

Scheffler,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Göksu, C., Hanson, L., Siebner, H., Ehses, P., Scheffler, K., & Thielscher, A. (2019). Does RF spoiling enhance human in-vivo brain MR Current Density Imaging (MRCDI)?. Poster presented at 27th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2019), Montréal, QC, Canada.


Cite as: http://hdl.handle.net/21.11116/0000-0003-96D9-F
Abstract
MRCDI is an emerging modality for non-invasive measurement of weak currents in the human brain, which is important in several neuroscientific applications. It is based on current-induced field measurements and requires high sensitivity to the extrinsic field changes. Measurement sensitivity can be compromised by irrelevant field changes caused by physiological variation. Here, we compare the performance of the so far most sensitive MRCDI method based on steady-state free precession free induction decay (SSFP-FID) with its RF-spoiled counterpart fast low angle shot (FLASH). No significant sensitivity differences were observed in slices covering the upper part of the brain, but SSFP-FID had ~20% lower noise floors in lower slices. For the relevant acquisition parameters, FLASH exhibits no remarkable image quality enhancements in 2D.