| Zugriffsnummer | 37182 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Local multi-channel RF surface coil versus body RF coil transmission for cardiac magnetic resonance at 3 Tesla: Which configuration is winning the game? |
| Autor(in); Institution |
Weinberger, O.; Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrueck Center for Molecular Medicine in the Helmholtz Association, Berlin, GERMANY; Experimental and Clinical Research Center (ECRC), a joint cooperation between the Charité Medical Faculty and the Max Delbrueck Center for Molecular Medicine, Berlin, GERMANY
Winter, L.; Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrueck Center for Molecular Medicine in the Helmholtz Association, Berlin, GERMANY
Dieringer, M.; Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrueck Center for Molecular Medicine in the Helmholtz Association, Berlin, GERMANY; Experimental and Clinical Research Center (ECRC), a joint cooperation between the Charité Medical Faculty and the Max Delbrueck Center for Molecular Medicine, Berlin, GERMANY
Els, A.; Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrueck Center for Molecular Medicine in the Helmholtz Association, Berlin, GERMANY
Oezerdem, C.; Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrueck Center for Molecular Medicine in the Helmholtz Association, Berlin, GERMANY; German Centre for Cardiovascular Research (DZHK), Berlin, GERMANY
Rieger, J.; MRI.TOOLS GmbH, Berlin, GERMANY
Kühne, A.; MRI.TOOLS GmbH, Berlin, GERMANY
Cassara, Antonino; 8.1, Medizinische Messtechnik, PTB-Berlin; Current address: IT'IS Foundation for Research on Information Technologies in Society, Zurich, SWITZERLAND
Pfeiffer, Harald; 8.1, Medizinische Messtechnik, PTB-Berlin
Wetterling, F.; Institute of Neuroscience, Trinity College Dublin, Dublin, IRELAND
Niendorf, Th.; Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrueck Center for Molecular Medicine in the Helmholtz Association, Berlin, GERMANY; Experimental and Clinical Research Center (ECRC), a joint cooperation between the Charité Medical Faculty and the Max Delbrueck Center for Molecular Medicine, Berlin, GERMANY; MRI.TOOLS GmbH, Berlin, GERMANY
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| Quelle/Jahr | PLoS one:(2016), 1 - 23 |
| Availability | [online only] |
| ISSN | 1932-6203 |
| DOI | |
| Verlag | Lawrence: PLoS |
| Zusammenfassung | Methods Electromagnetic field simulations are conducted to detail RF power deposition, transmission field uniformity and efficiency for local and body RF coil transmission. For both excitation regimes transmission field maps are acquired in a human torso phantom. For each transmission regime flip angle distributions and blood-myocardium contrast are examined in a volunteer study of 12 subjects. The feasibility of the local transceiver RF coil array for cardiac chamber quantification at 3 Tesla is demonstrated. Results Our simulations and experiments demonstrate that cardiac MR at 3 Tesla using four-channel surface RF coil transmission is competitive versus current clinical CMR practice of large volume body RF coil transmission. The efficiency advantage of the 4TX/4RX setup facilitates shorter repetition times governed by local SAR limits versus body RF coil transmission at whole-body SAR limit. No statistically significant difference was found for cardiac chamber quantification derived with body RF coil versus four-channel surface RF coil transmission. Our simulation also show that the body RF coil exceeds local SAR limits by a factor of ~2 when driven at maximum applicable input power to reach the whole-body SAR limit. Conclusion Pursuing local surface RF coil arrays for transmission in cardiac MR is a conceptually appealing alternative to body RF coil transmission, especially for patients with implants. |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
Zitierung
Weinberger, O., Winter, L., Dieringer, M., Els, A., Oezerdem, C., Rieger, J., Kühne, A., Cassara, A., Pfeiffer, H., Wetterling, F., & Niendorf, T. (2016). Local multi-channel RF surface coil versus body RF coil transmission for cardiac magnetic resonance at 3 Tesla: Which configuration is winning the game? PLoS one, 1–23. https://doi.org/10.1371/journal.pone.0161863