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  Comparison of B0 versus B0 and B1 field inhomogeneity correction for glycosaminoglycan chemical exchange saturation transfer imaging

Müller-Lutz, A., Lijmani, A., Stabinska, J., Zaiss, M., Boos, J., & Wittsack, H.-J. (2018). Comparison of B0 versus B0 and B1 field inhomogeneity correction for glycosaminoglycan chemical exchange saturation transfer imaging. Magnetic Resonance Materials in Physics, Biology and Medicine, 31(5), 645-651. doi:10.1007/s10334-018-0689-5.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-7CA9-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-1551-B
Genre: Journal Article

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Müller-Lutz, A, Author
Lijmani, A, Author
Stabinska, J, Author
Zaiss, M1, 2, Author              
Boos, J, Author
Wittsack, H-J, 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              

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 Abstract: Purpose The study compares glycosaminoglycan chemical exchange saturation transfer (gagCEST) imaging of intervertebral discs corrected for solely B0 inhomogeneities or both B0 and B1 inhomogeneities. Methods Lumbar intervertebral discs of 20 volunteers were examined with T2-weighted and gagCEST imaging. Field inhomogeneity correction was performed with B0 correction only and with correction of both B0 and B1. GagCEST effects measured by the asymmetric magnetization transfer ratio (MTRasym) and signal-to-noise ratio (SNR) were compared between both methods. Results Significant higher MTRasym and SNR values were obtained in the nucleus pulposus using B0 and B1 correction compared with B0-corrected gagCEST. The GagCEST effect was significantly different in the nucleus pulposus compared with the annulus fibrosus for both methods. Conclusion The B0 and B1 field inhomogeneity correction method leads to an improved quality of gagCEST imaging in IVDs compared with only B0 correction.

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 Dates: 2018-052018-10
 Publication Status: Published in print
 Pages: -
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 Rev. Method: -
 Identifiers: DOI: 10.1007/s10334-018-0689-5
BibTex Citekey: MullerLutzLSZBW2018
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Title: Magnetic Resonance Materials in Physics, Biology and Medicine
Source Genre: Journal
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Publ. Info: Amsterdam : No longer published by Elsevier
Pages: - Volume / Issue: 31 (5) Sequence Number: - Start / End Page: 645 - 651 Identifier: ISSN: 0968-5243
CoNE: /journals/resource/954926245532