| Datensatz noch nicht abgeschlossen | |
| Zugriffsnummer | 56032 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Improving the accuracy of MRF-based abdominal T1-mapping at 7T and beyond |
| Autor(in); Institution |
Himburg, Niklas; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Lutz, Max; 8.1, Biomedizinische Magnetresonanz, PTB-Berlin
Metzger, Gregory J.; Center for Magnetic Resonance Research (CMRR), University of Minnesota, Minneapolis, USA
|
| Quelle/Jahr | Proceedings of the International Society for Magnetic Resonance in Medicine:(2026) |
| Availability | [online only] |
| ISSN | 1065-9889 (online) |
| URL | |
| Verlag | ISMRM |
| Konferenzangaben | Annual Meeting of the ISMRM, Capetown, 9-14, Mai, 2026, South Africa |
| Freie Schlagworte | MR fingerprinting ; quantitative imaging ; 7T body imaging ; B1 mapping |
| Zusammenfassung | Magnetic Resonance Fingerprinting (MRF) can simultaneously acquire multiple quantitative parameter maps e.g. T1/T2 maps . This method is also applicable at ultra-high fields (UHF), despite the presence of inhomogeneous B+1 fields that change the image contrast , by including B+1 variations into the dictionary. The application of MRF as an approach to deal with the especially severe B+1 inhomogeneities in the body at 7T was proposed by Cloos et al. However, during MRF-measurements for T1/ B+1 mapping we encountered difficulties with underestimated T1 values that increased for longer T1 times. In this work, we aim to improve the accuracy of in-vivo MRF-T1 maps at UHF by introducing a pause in the sequence to counter possible saturation effects without affecting the B+1mapping capabilities of the sequence. |
