| Zugriffsnummer | 44849 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Impact of respiration on B1+ field and SAR distribution at 7 T using a novel EM simulation setup |
| Autor(in); Institution |
Schön, Natalie; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Petzold, Johannes; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Seifert, Frank; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Aigner, Christoph; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Metzger, G.; Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, USA
Ittermann, Bernd; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Schmitter, Sebastian; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
|
| Quelle/Jahr | ISMRM 28th annual meeting & exhibition: 08-14, August, 2020; virtual conference:(2020), 4 S. |
| Artikelnummer | 1120 |
| URL | |
| Konferenzangaben | 28th Annual Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM), Virtual Conference, 08-14, August, 2020 |
| Zusammenfassung | At 7T body imaging spatial variations of the transmit magnetic (B1+) and electric (E) fields are observed. Additionally, recent in-vivo studies showed that B1+ patterns vary throughout the respiratory cycle. We present a novel electromagnetic (EM) simulation setup that allows investigating respiration-induced changes of the E- and B1+ fields. Using such simulations, we aim to verify the aforementioned in-vivo results that demonstrated respiration-induced changes of B1+ and corresponding flip angle distributions in the heart. Furthermore, the hitherto neglected, corresponding SAR variations are investigated and we find an up to 100 % change in local SAR throughout the respiratory cycle. [Conference did take place as virtual conference because of Covid-19 virus pandemic] |
| Themenbereich der Metrologie | Metrologie in der Medizin |
Zitierung
Schön, N., Petzold, J., Seifert, F., Aigner, C., Metzger, G., Ittermann, B., & Schmitter, S. (2020). Impact of respiration on B1+ field and SAR distribution at 7 T using a novel EM simulation setup. 28th Annual Meeting of the International Society of Magnetic Resonance in Medicine (ISMRM), Virtual Conference, 08-14, August, 2020.