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  Towards robust QSM in cortical and sub-cortical regions of the human brain at 9.4T: influence of coil combination and masking strategies

Hagberg, G., Eckstein, K., Cuna, E., & Scheffler, K. (2020). Towards robust QSM in cortical and sub-cortical regions of the human brain at 9.4T: influence of coil combination and masking strategies. Poster presented at 2020 ISMRM & SMRT Virtual Conference & Exhibition.

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externe Referenz:
https://www.ismrm.org/20/program_files/DP09-07.htm (Zusammenfassung)
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 Urheber:
Hagberg, GE1, Autor           
Eckstein, K, Autor           
Cuna, E, Autor
Scheffler, K1, Autor           
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              

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 Zusammenfassung: Strong background signals leading to multiple phase wraps may hamper accurate quantification of magnetic tissue susceptibility (QSM) especially at high field strengths using long echo times to achieve a high spatial sampling. Here we show how different coil-combination, automated tissue masking and background removal techniques can be used to improve QSM quality. Performance was evaluated with regard to iron quantification in subcortical and cortical areas in the same subjects. We found a substantial improvement in accuracy and precision of QSM in high-field applications at long echo times through the use of ASPIRE and removal of areas with excessive phase evolution.

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 Datum: 2020-08
 Publikationsstatus: Online veröffentlicht
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Veranstaltung

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Titel: 2020 ISMRM & SMRT Virtual Conference & Exhibition
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Start-/Enddatum: 2020-08-08 - 2020-08-14

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Quelle 1

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Titel: 2020 ISMRM & SMRT Virtual Conference & Exhibition
Genre der Quelle: Konferenzband
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Seiten: - Band / Heft: - Artikelnummer: 3786 Start- / Endseite: - Identifikator: -