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  An active TX/RX NMR probe for real-time monitoring of MRI field imperfections

Handwerker, J., Ortmanns, M., Anders, J., Eschelbach, M., Chang, P., Henning, A., et al. (2013). An active TX/RX NMR probe for real-time monitoring of MRI field imperfections. In IEEE Biomedical Circuits and Systems Conference (BioCAS 2013) (pp. 194-197). Piscataway, NJ, USA: IEEE.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-001A-14A2-E Versions-Permalink: https://hdl.handle.net/21.11116/0000-000C-95A0-6
Genre: Konferenzbeitrag

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externe Referenz:
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6679672 (Verlagsversion)
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 Urheber:
Handwerker, J, Autor
Ortmanns, M, Autor
Anders, J, Autor
Eschelbach, M1, Autor                 
Chang, P2, Autor                 
Henning, A2, Autor                 
Scheffler, K1, Autor                 
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
2Research Group MR Spectroscopy and Ultra-High Field Methodology, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_2528692              

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 Zusammenfassung: In this paper, we present a PCB-based active miniaturized MR field probe for real-time monitoring of the magnetization's phase evolution during magnetic resonance (MR) experiments. The data obtained with the presented sensor can be used to correct gradient field imperfections which uncorrected result in significant distortions in the reconstructed MR images. The presented active field probe consists of a susceptibility matched solenoidal MR coil and a complete homodyne transceiver. Thanks to the local generation of the radio frequency signal required for the excitation of the spin ensemble and the downconversion of the recorded MR signal to low frequencies, the proposed architecture significantly reduces the crosstalk between the probe head and the MR imaging object compared to existing designs. MR measurements performed in an ultra high field 9.4 T full-body scanner prove the compatibility of the presented sensor with commercial MR imaging systems and demonstrate its excellent MR phase tracking performance.

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 Datum: 2013-11
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1109/BioCAS.2013.6679672
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Veranstaltung

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Titel: IEEE Biomedical Circuits and Systems Conference (BioCAS 2013)
Veranstaltungsort: Rotterdam, The Netherlands
Start-/Enddatum: 2013-10-31 - 2013-11-03

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Titel: IEEE Biomedical Circuits and Systems Conference (BioCAS 2013)
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Piscataway, NJ, USA : IEEE
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 194 - 197 Identifikator: ISBN: 978-1-479-91470-8