Design and initial testing of a thermally insulated phantom system for MR thermometry based coil validation
Motivation: MR thermometry (MRT) based RF coil safety validation requires precise measurements with high sensitivity. Goal(s): To maximise MRT coil validation sensitivity by designing a bespoke phantom and phantom holder Approach: A phantom with embedded temperature probes and oil references for proton resonance frequency shift thermometry was designed, combined with a 3D printed holder that fills the space between the phantom and the coil. This both positions the phantom securely and thermally isolates it, maximizing sensitivity of MRT. Results: A high degree of thermal isolation was observed, with MRT experiments able to detect significant RF induced temperature changes. Impact: The thermally insulating 3D printed phantom holder is beneficial for MRT-based RF coil validation studies, enabling stable geometry and minimising environmental temperature loss for SAR estimation. The design can easily be adapted for other coil dimensions and probe positions.
Authors
- Daniel W. D. West (ORCID: https://orcid.org/0000-0001-9195-2602)
- Aaron Oliver‐Taylor
- Kun Qian (ORCID: https://orcid.org/0000-0002-3326-1843)
- Shaihan Malik (ORCID: https://orcid.org/0000-0001-8925-9032)
- Ronald Mooiweer (ORCID: https://orcid.org/0000-0003-2693-1033)
- Sarah McElroy (ORCID: https://orcid.org/0000-0002-4271-5931)
- Özlem İpek (ORCID: https://orcid.org/0000-0001-5233-1600)
- Tomoki Arichi (ORCID: https://orcid.org/0000-0002-3550-1644)
- Joseph V. Hajnal (ORCID: https://orcid.org/0000-0002-2690-5495)
- David Leitão (ORCID: https://orcid.org/0000-0001-5853-8602)
- Pierluigi Di Ciò (ORCID: https://orcid.org/0000-0002-0457-9449)
- Nejat Karadeniz (ORCID: https://orcid.org/0009-0003-9975-4469)
- Menglu Wu
- Ayse Sila Dokumaci
- George P. Keeling
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/10.58530/2025/3641
- Primary Topic
- Advanced MRI Techniques and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00