| Zugriffsnummer | 31495 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Local coil versus conventional body coil transmission for cardiac MR: B1+ efficiency improvements and enhanced blood myocardium contrast for 2D CINE SSFP imaging at 3T |
| Autor(in); Institution |
Kraus, O.; Berlin Ultrahigh Field Facility, Max-Delbrueck Center, Berlin, GERMANY
Winter, L.; Berlin Ultrahigh Field Facility, Max-Delbrueck Center, Berlin, GERMANY
Dieringer, M.; Berlin Ultrahigh Field Facility, Max-Delbrueck Center, Berlin, GERMANY; Working Group on Cardiovascular MR, Experimental and Clinical Research Center (ECRC), Berlin, GERMANY
Graessl, A.; Berlin Ultrahigh Field Facility, Max-Delbrueck Center, Berlin, GERMANY
Rieger, J.; MRI.TOOLS GmbH, Berlin, GERMANY
Oezerdem, C.; Berlin Ultrahigh Field Facility, Max-Delbrueck Center, Berlin, GERMANY
Hezel, F.; Berlin Ultrahigh Field Facility, Max-Delbrueck Center, Berlin, GERMANY
Kuehne, A.; Center for Medical Physics and Biomedical Enginieering, Medical University of Vienna, AUSTRIA; MR Center of Excellence, Medical University of Vienna, AUSTRIA
Waxmann, Patrick; 8.1, Medizinische Messtechnik, PTB-Berlin
Pfeiffer, Harald; 8.1, Medizinische Messtechnik, PTB-Berlin
Niendorf, T.; Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine, Berlin, GERMANY; Experimental and Clinical Research Center, Berlin, GERMANY
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| Quelle/Jahr | ISMRM 22th annual meeting & exhibition: 10-16 May 2014; Milan, Italy:(2014), 2364 |
| Availability | [CD-ROM] ; file name: 2364.pdf |
| Konferenzangaben | ISMRM 22th Scientific Meeting of the International Society for Magnetic Resonance in Medicine, Milano, 10-16, May, 2014, Italien |
| Zusammenfassung | In current clinical cardiac MR (CMR) practice large volume/body RF coils are commonly used for RF excitation (TX) together with local multi-channel receive (RX) coils. When moving to higher magnetic fields (B 0 ≥3T) some of the signal-to-noise (SNR) and contrast-to-noise (CNR) gain is offset by specific Absorption rate (SAR) constraints which limit the flip angle (FA) range used for routine clinical CMR. Realizing these challenges and recognizing the SAR benefits of local transceiver (TX/RX) coils it is conceptually appealing to pursue CMR at 3T using local TX/RX arrays. To meet this goal this study examines the applicability of a 4 channel local TX/RX array for CMR at 3.0 T. For this purpose, transmit field (B1+) homogeneity and efficiency of the proposed array are explored. The feasibility of the proposed transceiver coil design for high spatial resolution 2D CINE imaging of the heart at 3T is demonstrated. |
Zitierung
Kraus, O., Winter, L., Dieringer, M., Graessl, A., Rieger, J., Oezerdem, C., Hezel, F., Kuehne, A., Waxmann, P., Pfeiffer, H., & Niendorf, T. (2014). Local coil versus conventional body coil transmission for cardiac MR: B₁⁺ efficiency improvements and enhanced blood myocardium contrast for 2D CINE SSFP imaging at 3T. ISMRM 22th Scientific Meeting of the International Society for Magnetic Resonance in Medicine, Milano, 10-16, May, 2014, Italien.