Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

 
 
DownloadE-Mail
  An orthogonal shim coil for 3T brain imaging

Zhou, J., Stockmann, J., Arango, N., Witzel, T., Scheffler, K., Wald, L., et al. (2020). An orthogonal shim coil for 3T brain imaging. Magnetic Resonance in Medicine, 83(4), 1499-1511. doi:10.1002/mrm.28010.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Externe Referenzen

einblenden:
ausblenden:
Beschreibung:
-
OA-Status:

Urheber

einblenden:
ausblenden:
 Urheber:
Zhou, J1, 2, Autor           
Stockmann, JP, Autor
Arango, N, Autor
Witzel, T, Autor
Scheffler, K1, 2, Autor           
Wald, LL, Autor
Lin, F-H, Autor
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, ou_1497794              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: Purpose: We designed and implemented an orthogonal shim array consisting of shim coils with their planes perpendicular to the planes of neighboring RF coils. This shim coil improves the magnetic field homogeneity by minimizing the interference to RF coils.
Methods

Using realistic off‐resonance maps of the human brain, we first evaluated the performance of shim coils in different orientations. Based on simulations, we developed a 7‐channel orthogonal shim array, whose coil plan was perpendicular to neighboring RF coils, at the forehead. A programmable open‐source current driver supplied shim currents.
Results

The 7‐channel orthogonal shim array caused only marginal SNR loss to the integrated 32‐channel RF‐shim array. The 7‐channel orthogonal shim array itself improved the magnetic field homogeneity by 30% in slice‐optimized shimming, comparable to the baseline shimming offered by the scanner's 2nd order spherical harmonic shimming.
Conclusion

Orthogonal shim coils can improve the field homogeneity while maintaining high image SNR.

Details

einblenden:
ausblenden:
Sprache(n):
 Datum: 2019-102020-04
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1002/mrm.28010
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Magnetic Resonance in Medicine
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: New York : Wiley-Liss
Seiten: - Band / Heft: 83 (4) Artikelnummer: - Start- / Endseite: 1499 - 1511 Identifikator: ISSN: 0740-3194
CoNE: https://pure.mpg.de/cone/journals/resource/954925538149