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  Impact of Gradient Nonlinearity on the Accuracy of NMR Field Camera Readouts

Chang, P., Eschelbach, M., Syha, R., Scheffler, K., & Henning, A. (2015). Impact of Gradient Nonlinearity on the Accuracy of NMR Field Camera Readouts. Poster presented at 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015), Toronto, Canada.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-4603-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-21BF-3
Genre: Poster

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 Creators:
Chang, P1, 2, Author              
Eschelbach, M1, 3, Author              
Syha, R, Author
Scheffler, K1, 3, Author              
Henning, A1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              
2Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_2528692              
3Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Abstract: Field monitoring using NMR field cameras typically use the gradients for calculating the positions of the field probes. However this is under the assumption that the gradients are linear which is certainly not the case. The effect of evaluated gradient imperfections on the estimation of the probes was investigated. Furthermore, the effect of the position error on monitoring higher order spherical harmonics was also investigated. A CT scan of the field camera setup was used to correct for errors in the calculations of the probe position.

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 Dates: 2015-06-02
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: ChangESSH2015
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Title: 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015)
Place of Event: Toronto, Canada
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Title: 23rd Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2015)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 1835 Start / End Page: - Identifier: -