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Miscellaneous 2020

Acquisition-weighted MR Current Density Imaging (AW-MRCDI) improves sensitivity and spatial resolution

{Exact knowledge of currents flowing inside the human brain is important for several neuroscientific applications. MRCDI combines MR with externally injected weak currents, and uses measurements of the current-induced magnetic field to estimate spatial current distribution. The method\textquoterights accuracy highly depends on the sensitivity and spatial resolution of the field measurements. Here, we improve the currently most sensitive MRCDI method based on steady-state free precession free induction decay (SSFP-FID) by using an acquisition-weighted scheme (AW-MRCDI). We compared weighted and conventional schemes by phantom experiments. AW-MRCDI demonstrated 59\textpercent increase in sensitivity and significantly improved the spatial resolution.}

Author(s): Göksu, C and Hanson, LG and Gregersen, F and Scheffler, K and Thielscher, A
Book Title: 2020 ISMRM & SMRT Virtual Conference & Exhibition
Year: 2020
Bibtex Type: Miscellaneous (misc)
Electronic Archiving: grant_archive

BibTex 

@misc{item_3248080,
  title = {{Acquisition-weighted MR Current Density Imaging (AW-MRCDI) improves sensitivity and spatial resolution}},
  booktitle = {{2020 ISMRM \& SMRT Virtual Conference \& Exhibition}},
  abstract = {{Exact knowledge of currents flowing inside the human brain is important for several neuroscientific applications. MRCDI combines MR with externally injected weak currents, and uses measurements of the current-induced magnetic field to estimate spatial current distribution. The method\textquoterights accuracy highly depends on the sensitivity and spatial resolution of the field measurements. Here, we improve the currently most sensitive MRCDI method based on steady-state free precession free induction decay (SSFP-FID) by using an acquisition-weighted scheme (AW-MRCDI). We compared weighted and conventional schemes by phantom experiments. AW-MRCDI demonstrated 59\textpercent increase in sensitivity and significantly improved the spatial resolution.}},
  year = {2020},
  slug = {item_3248080},
  author = {G\"oksu, C and Hanson, LG and Gregersen, F and Scheffler, K and Thielscher, A}
}