Hongbae Jeong1,2 and Giorgio Bonmassar1,2
1Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States, 2Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, United States
1Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States, 2Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, United States
The SAR of a 29-month-old child with a 128-channel EEG net at 3T was presented. The EEG net designed for MR-compatible use could generate additional heating near the position of the electrode on the skin, but the amount of SAR was estimated within the safety limit with the thin film based EEG trace.
Figure 2.:The simulation set-up for the EEG traces and sponges. (a) shows the 3D scanned EEG net put on the 29-month-old head mock-up, (b) shows the position of the sponges which is chosen from (a) and used as the reference points for the EEG trace allocation, (c) shows the final drawing of 128 channel EEG traces connected on sponges on the head of the 29-month-old boy voxel model.
Figure 5: EM simulation results. (a) pSAR results displayed in the surface of the 29-month-old voxel model with a 128-channel EEG net, (b) pSAR results in the surface of the 29-month-old without an EEG net (In both cases, the simulation results are normalized to 2µT at the coil center)
