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  Phase Imaging at Ultra-Low Field MRI

Cassara, A., Körber, R., Burghoff, M., Hagberg, G., Maraviglia, B., & Hartwig, S. (2012). Phase Imaging at Ultra-Low Field MRI. Poster presented at 18th International Conference on Biomagnetism (BIOMAG 2012), Paris, France.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-9CBE-A Version Permalink: http://hdl.handle.net/21.11116/0000-0001-9CBF-9
Genre: Poster

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 Creators:
Cassara, AM, Author
Körber, R, Author
Burghoff, M, Author
Hagberg, G1, 2, Author              
Maraviglia, B, Author
Hartwig, S, 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, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: Imaging using nuclear magnetic resonance (NMR), i.e. Larmor fields comparable or even smaller to the earth magnetic field (∼ 50), is possible, and it has been widely demonstrated so far using precession frequencies above 1kHz. Recently, it has been shown that imaging is also possible at Larmor frequencies below 1 kHz, i.e. in the spectral band of the neuronal activity in the brain. Up to now, published ultra low field NMR images (ULF-MRI) were reconstructed using the magnitude of the FFT transform of the recorded NMR signals, but is not well know that at the ULF regimes the phase contrast could also provide important or complementary information. This works addressed the topic of phase imaging at ULF-MRI, i.e. images reconstructed using the phase of the FFT transform and it aims at comparing their properties in comparison with the standard magnitude MRI images. A comparison between the two reconstruction modalities (phase and magnitude) at ULF-MRI is reported with the indication of similarities, differences and future perspective for medical applications like the direct neuronal imaging.

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 Dates: 2012-08
 Publication Status: Published in print
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Title: 18th International Conference on Biomagnetism (BIOMAG 2012)
Place of Event: Paris, France
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Title: 18th International Conference on Biomagnetism (BIOMAG 2012)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 384 - 385 Identifier: -