ArticleMagnetic resonance in medicine2025
On the RF safety of titanium mesh head implants in 7 T MRI systems: an investigation.
Article in Magnetic resonance in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- SAR validation of RF coils and implants in a B0-free RF safety laboratory.Medical physics · 2026Article
- Evaluation of the additional occupational risk for workers with orthopedic implants in MRI settings.Annals of work exposures and health · 2026Article
- Precision functional imaging in infants using multi-echo fMRI at 7T.bioRxiv : the preprint server for biology · 2025Article
- On the RF safety of titanium mesh head implants in 7 T MRI systems: an investigation.Magnetic resonance in medicine · 2025Article
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Authors and funding
7 authors.
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Abstract
purposePatients undergoing craniofacial surgery for skull reconstruction may have titanium mesh implants. The safety risks related to 7 T MRI with these patients are not well understood. This study investigates the RF heating of titanium mesh head implants at 7 T.
methodsA simulation model for a 7 T birdcage head coil was developed and validated against
resultsPreliminary results indicate an increase in the local SAR near the meshes depending on the shape, size, and location. The maximum absolute temperatures in the head were, on average, around 38.2°C after 15 min of RF power exposure, corresponding to 3.2 W/kg whole-head SAR without a titanium mesh implant. The maximum absolute temperatures did not significantly change after introducing the titanium mesh implants, and the highest temperature was 38.4°C, observed near the cerebellum and the facial muscles. The maximum local increase in temperature was observed at the vicinity of the mesh as 2.8°C. Finally, it was shown that large mesh implants can negatively impact
conclusionsSmall rounded titanium mesh head implants can be generally safe for 7 T MRI scans under the standard guidelines. Avoiding sharp corners and edges may reduce the chances of RF safety risks.
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