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  Functional Quantitative Susceptibility Mapping (fQSM)

Balla, D., Sanchez-Panchuelo, R., Wharton, S., Hagberg, G., Scheffler, K., Francis, S., et al. (2012). Functional Quantitative Susceptibility Mapping (fQSM). In 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012).

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-B7C4-7 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-A5B0-D
Genre: Meeting Abstract

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 Creators:
Balla, DZ1, 2, Author              
Sanchez-Panchuelo, R, Author
Wharton, S, Author
Hagberg, G2, 3, Author              
Scheffler, K1, 2, Author              
Francis, ST, Author
Bowtell, RW, Author
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
3Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497798              

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 Abstract: Quantitative susceptibility mapping (QSM) was performed on fMRI time-series to reconstruct maps with activation induced local susceptibility changes. A multi-step image processing algorithm was developed for filtering out unwanted temporal and spatial signal variations. The method was validated on GE-EPI BOLD-fMRI datasets acquired at 7T with 1mm isotropic resolution during the application of visual, motor and somatosensory activation paradigms. Series of high-quality phase and susceptibility maps with minimal temporal noise were reconstructed, which resulted in activation maps corresponding to estimations from the modulus data. Functional QSM (fQSM) allows for quantification of the BOLD-effect for any time-series with phase information.

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 Dates: 2012-05
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: BallaSWHSFB2012
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Title: 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012)
Place of Event: Melbourne, Australia
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Title: 20th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2012)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 0325 Start / End Page: - Identifier: -