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  Fast B0 first order inhomogeneity estimation using radial acquisition

Aghaeifar, A., Loktyushin, A., Mirkes, C., Thielscher, A., & Scheffler, K. (2016). Fast B0 first order inhomogeneity estimation using radial acquisition. In 24th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2016).

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Item Permalink: http://hdl.handle.net/21.11116/0000-0000-7CCC-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-E945-C
Genre: Meeting Abstract

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Aghaeifar, A1, 2, Author              
Loktyushin, A2, 3, Author              
Mirkes, C2, Author              
Thielscher, A1, 2, Author              
Scheffler, K1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
3Dept. Empirical Inference, Max Planck Institute for Intelligent Systems, Max Planck Society, ou_1497647              

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 Abstract: B0 field inhomogeneity is a major source of distortion in MR images. Current approaches to dynamic shimming require extra acquisition time or external hardware. We propose a method that estimates first order shim errors by using projections of radial acquisition. The errors can be estimated from three projections multiple times in each measurement, which makes the method highly robust. The proposed method is evaluated in simulation and in vivo. Obtained results show a strong agreement between applied and measured first order shim errors.

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 Dates: 2016-05-12
 Publication Status: Published in print
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 Identifiers: BibTex Citekey: AghaeifarLMTS2016
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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: 0932 Start / End Page: - Identifier: -