In-vivo 7T body MRI with complete abdominal coverage using pTx and a 32-Tx-channel whole-body RF antenna array
Motivation: Flip angle variations or voids are problematic at 7T, especially when large fields of excitation are needed, such as for the entire abdomen. Goal(s): To homogeneously excite the whole abdomen using dynamic pTx and to investigate the minimal number of kT-points necessary. Approach: Dynamic pTx is applied in the abdomen using a 32-Tx-channel whole-body array and free-breathing relative B1+ mapping. Results: The preliminary data indicates that exciting the whole abdomen is feasible and that dynamic pTx yields sufficient FA homogeneity in all subjects. Impact: The preliminary data indicates that exciting the whole abdomen is feasible and that dynamic pTx yields sufficient FA homogeneity in all subjects.
Authors
- Johannes Grimm (ORCID: https://orcid.org/0000-0002-5115-9033)
- Stephan Orzada (ORCID: https://orcid.org/0000-0001-9784-4354)
- Sebastian Schmitter (ORCID: https://orcid.org/0000-0003-4410-6790)
- Thomas M. Fiedler (ORCID: https://orcid.org/0000-0002-1556-375X)
- Mark E. Ladd (ORCID: https://orcid.org/0000-0002-4128-9440)
- Sebastian Dietrich (ORCID: https://orcid.org/0000-0002-1610-909X)
- Christoph Stefan Aigner (ORCID: https://orcid.org/0000-0003-3618-9610)
- Constantin Schorling
Publication Details
- Journal
- Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition
- Published
- 2024-11-26
- DOI
- https://doi.org/10.58530/2024/4941
- Primary Topic
- Advanced MRI Techniques and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00