| Zugriffsnummer | 52858 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Reproducibility of tailored and universal non-selective excitation pulses at 7T for human cardiac body imaging: A 3-year and an inter-day study |
| Autor(in); Institution |
Alarcón, Manuel Fernando Sánchez; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Bassenge, Jean Pierre; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin; Charité – Universitätsmedizin Berlin, Berlin, GERMANY
Schulz-Menger, Jeanette; Charité - Universitätsmedizin Berlin, Berlin, GERMANY
|
| Quelle/Jahr | Proceedings of the International Society for Magnetic Resonance in Medicine:(2024), 1 - 2 |
| Artikelnummer | 0521 |
| ISSN | 1065-9889 |
| DOI | |
| Konferenzangaben | ISMRM & ISMRT Annual Meeting & Exhibition, Singapore, 04-09, May, 2024, Singapore |
| Freie Schlagworte | RF Pulse Design & Fields ; High-Field MRI ; Reproducibility ; Universal pulse ; 7T ; pTx |
| Zusammenfassung | Ultra-high field (UHF) body MRI faces challenges due to inherent spatial variations in flip angle (FA) patterns. Subject-specific parallel transmission (pTx) methods, relying on personalized B+1 -maps, ensure high FA uniformity in the cardiac region. In contrast, using cardiac universal pulses (UPs) offers time-saving benefits and robustness for various RF coil placements, while also achieving FA uniformity in surrounding tissues, including the aorta. This study assesses the reproducibility and variability of three excitation methods in six subjects: default excitation, 4kT-points subject-tailored pTx (TP), and calibration-free UP. In addition to a previous study , three different MRI operators conducted re-scans at one- and two-year intervals, including inter-day scans by two different operators. |
Zitierung
Alarcón, M. F. S., Dietrich, S., Bassenge, J. P., Schulz-Menger, J., Schmitter, S., & Aigner, C. S. (2024). Reproducibility of tailored and universal non-selective excitation pulses at 7T for human cardiac body imaging: A 3-year and an inter-day study. ISMRM & ISMRT Annual Meeting & Exhibition, Singapore, 04-09, May, 2024, Singapore. https://doi.org/10.58530/2024/0521