| Zugriffsnummer | 52860 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | A comparison of various custom-built pTx RF arrays for body imaging at 7T with regard to their transmit efficiency |
| Autor(in); Institution |
Grimm, Johannes A.; Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, GERMANY; Faculty of Physics and Astronomy, Heidelberg University, Heidelberg, GERMANY
Kraff, Oliver; Erwin L. Hahn Institute for Magnetic Resonance Imaging, Universität Duisburg-Essen, Essen, GERMANY
May, Markus; Faculty of Physics and Astronomy, Heidelberg University, Heidelberg, GERMANY; High Field and Hybrid MR Imaging, University Hospital Essen, Essen, GERMANY
Lutz, Max; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Orzada, Stephan; Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, GERMANY
Quick, Harald H.; Advanced Clinical Imaging Technology, Siemens Healthineers Erwin L. Hahn Institute for Magnetic Resonance Imaging, Universität Duisburg-Essen, Essen, GERMANY; High Field and Hybrid MR Imaging, University Hospital Essen, Essen, GERMANY
Ladd, Mark E.; Medical Physics in Radiology, German Cancer Research Center (DKFZ), Heidelberg, GERMANY; Faculty of Physics and Astronomy, Heidelberg University, Heidelberg, GERMANY; Institute for Magnetic Resonance Imaging, Universität Duisburg-Essen, Essen, GERMANY
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| Quelle/Jahr | Proceedings of the International Society for Magnetic Resonance in Medicine:(2024), 1 - 2 |
| Artikelnummer | 4943 |
| ISSN | 1065-9889 (online) |
| DOI | |
| Verlag | ISMRM |
| Konferenzangaben | Annual Meeting of ISMRM, Singapore, 04-09, Mai, 2024, Singapore |
| Freie Schlagworte | RF Arrays & Systems ; Ultra highfield ; 7T ; coil comparison ; pTx ; transmit effiency |
| Zusammenfassung | The commercially available Nova 8Tx/32Rx head coil (Nova medical Inc., Wilmington, USA) has become the standard coil for head imaging at 7T using parallel transmit (pTx). In recent years, body imaging has become of increasing interest , despite the challenges of inhomogeneous B+1 transmit profiles and SAR limitations . However, until now, no equivalent standard pTx coil exists for body imaging; instead, most sites have developed their own radiofrequency (RF) arrays over the past decade. A standardized pTx body array would be highly beneficial i) for 7T sites without RF engineering capabilities, ii) for comparability between sites, and iii) for multi-center studies. Furthermore, to achieve a potential extension of the existing 7T CE label/FDA clearance to whole-body imaging, a standardized RF array for body imaging would be desirable. Hence, in search of identifying such a pTx body array, we initiated a study to compare existing arrays from several sites with regard to their transmit and receive performance. This work presents preliminary results of this study focusing on the transmit performance (Tx efficiency and coverage) of five different 7T pTx body arrays containing di"erent element types from three collaborating sites. |
Zitierung
Grimm, J. A., Kraff, O., May, M., Lutz, M., Orzada, S., Quick, H. H., Ladd, M. E., & Schmitter, S. (2024). A comparison of various custom-built pTx RF arrays for body imaging at 7T with regard to their transmit efficiency. Annual Meeting of ISMRM, Singapore, 04-09, Mai, 2024, Singapore. https://doi.org/10.58530/2024/4943