Should I do 7T fMRI with the pTx or sTx coil? Consider the difference in geometry
Motivation: Parallel transmit (pTx) coils at 7T are clinically approved, but their advantage for fMRI remains unclear. Goal(s): We aimed to determine whether widely-used sTx or pTx coils provide better 7T fMRI data. Approach: We investigated 31 coils across 14 7T sites (SIEMENS and Philips), estimating noise correlation across receivers and mapped transmit field size/location using MR-visible beeswax and CT scans. Results: pTx coil placement benefits lower brain areas but increases noise coupling. Nova sTx and pTx coils differ in geometry. Impact: Geometrical design choices play a surprisingly large role for 7T fMRI when choosing the optimal coil.
Authors
- Anna I. Blazejewska (ORCID: https://orcid.org/0000-0002-2944-1147)
- Wietske van der Zwaag (ORCID: https://orcid.org/0000-0003-3223-9721)
- Luca Vizioli (ORCID: https://orcid.org/0000-0001-9450-1647)
- Alessandra Pizzuti (ORCID: https://orcid.org/0000-0002-3311-9118)
- Rüdiger Stirnberg (ORCID: https://orcid.org/0000-0001-7021-1063)
- Essa Yacoub (ORCID: https://orcid.org/0009-0000-1007-9056)
- Peter A. Bandettini (ORCID: https://orcid.org/0000-0001-9038-4746)
- Nikos Priovoulos (ORCID: https://orcid.org/0000-0001-5661-6670)
- Natalia Gudino (ORCID: https://orcid.org/0000-0002-7729-4911)
- Dario Bosch (ORCID: https://orcid.org/0000-0002-6537-6370)
- Jon̈athan R. Polimeni (ORCID: https://orcid.org/0000-0002-1348-1179)
- Andrew Morgan (ORCID: https://orcid.org/0000-0001-6017-2179)
- Monique C. Tourell (ORCID: https://orcid.org/0000-0001-6664-0674)
- Joelle E. Sarlls (ORCID: https://orcid.org/0000-0002-4734-5351)
- Barbara Dymerska (ORCID: https://orcid.org/0000-0001-6339-2169)
- D. O. Gómez (ORCID: https://orcid.org/0000-0002-4935-4358)
- Sebastian Dresbach (ORCID: https://orcid.org/0000-0002-0018-567X)
- Laurentius Huber (ORCID: https://orcid.org/0000-0002-3291-2202)
- Salvatore Torrisi (ORCID: https://orcid.org/0000-0003-4194-5644)
- Yuhui Chai (ORCID: https://orcid.org/0000-0003-1523-3117)
- An T. Vu (ORCID: https://orcid.org/0000-0003-2463-7789)
- Hendrik Mattern (ORCID: https://orcid.org/0000-0001-5740-4522)
- Benedikt Andreas Poser (ORCID: https://orcid.org/0000-0001-8190-4367)
- Emma Brouwer (ORCID: https://orcid.org/0000-0003-1355-8057)
- Jennifer Evans
- Saskia Bollmann
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
- 2025-09-16
- DOI
- https://doi.org/10.58530/2025/2333
- Primary Topic
- Advanced MRI Techniques and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00