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  Correcting Geometric Distortion in B0 Mapping

Chang, Y., Nassirpour, S., Fillmer, A., & Henning, A. (2016). Correcting Geometric Distortion in B0 Mapping. Poster presented at 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016), Singapore.

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Chang, YC1, 2, Author              
Nassirpour, S1, 2, Author              
Fillmer, A, Author
Henning, A1, 2, Author              
Affiliations:
1Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: The task of mapping B0 fields to characterise shim fields can be challenging since shim fields generate a highly inhomogeneous field that may be difficult to capture. Furthermore this results in geometric distortion of the B0 map which affects the characterisation of the shim field. Geometric distortion correction was investigated using a gridded phantom and compared to the effect of using a high bandwidth on the read-out gradient. It was found that using a high bandwidth was more effective in reducing the distortion and that correcting the distortion using a phantom grid was not sufficient.

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 Dates: 2016-05-10
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: ChangNFH2016
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Title: 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016)
Place of Event: Singapore
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Title: 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 1871 Start / End Page: - Identifier: -