MRI safety
Since interference-free and ultra compact electric-field probes allow measurements without any induced artifact on the magnetic field gradient generated by MRI machines, KAPTEOS solution meets the needs of electric field measurement inside any MRI machine, regardless their brand and their nominal magnetic field (1.5T, 3T, 4.7T, ...). Such measurements are of key importance to assess the compatibility of medical implants with MRI scans, and more broadly with MRI safety.
KAPTEOS has conducted many studies and manufactured numerous systems on behalf of its clients: time-resolved dosimetric measurements inside different biological media and tissues during a MRI scan, specific absorption rate (SAR) assessment in phantoms.
Case studies
by L. DUVILLARET/G. GABORIT
by G. GABORIT
by L. DUVILLARET
They use KAPTEOS technology for their R&D
List of publications
"Electric field measurements in preclinical MRI at 11.7 T and 7 T for experimental SAR comparison", P. Nobre et al., Journal of Magnetism and Magnetic Materials vol. 593, 171818 (2024), DOI: https://doi.org/10.1016/j.jmmm.2024.171818
"Acousto-optic-based time domain electric field sensor for magnetic resonance imaging applications", Y. S. Yaras et al., Optical Engineering vol. 63, 031008 (2024),
"Optical Link as an Alternative for MRI Receive Coils: Toward a Passive Approach", P. Nobre et al., IEEE Transactions on Biomedical Engineering vol. 70, p. 1447 – 1453 (2023),
"A Transfer Function Measurement Setup With an Electro-Optic Sensor for MR Safety Assessment in Cascaded Media", T. Lottner et al., IEEE Transactions on Electromagnetic Compatibility vol. 63, p. 662 – 672 (2020), DOI: https://doi.org/10.1109/TEMC.2020.3040756
"Electrooptic probe for realtime assessments of RF electric field produced in an MRI scanner: Feasibility tests at 3 and 4.7 T", I. Saniour et al., NMR in Biomedicine vol. 31, e3849 (2017), DOI: https://doi.org/10.1002/nbm.3849
