We strive to provide detailed safety and setup guidelines for performing simultaneous EEG-fMRI. This article explains factors related to the gradient magnetic field, which influence heating in the amplifiers and batteries during functional imaging. We also provide updated guidelines on how to protect the BrainAmp MR and Power Pack.
Until recently, there has been little information about EEG data quality and safety when used with newer multi-band (MB) fMRI sequences. Here, we measure the relative heating of a MB protocol compared with a standard single-band (SB) protocol considered to be safe. We also evaluated EEG quality recorded concurrently with the MB protocol on humans.
We’ve been very active in improving our EEG-fMRI solutions in recent years. Therefore, here is an EEG-fMRI safety refresher considering how the new developments fit into our safety recommendations.
We are excited to announce some news that will bring our conditions for use in line with current trends in fMRI. We have updated the MRI sequence conditions for our BrainAmp MR amplifiers and BrainCap MR.
Simultaneous EEG-fMRI acquisitions can offer valuable insights for the non-invasive study of human brain function. Concurrently, the benefits offered by high-field imaging have attracted considerable interest towards simultaneous EEG-fMRI at higher field strengths. Unfortunately, simultaneous acquisitions are subject to problematic interactions that can compromise data quality and subject safety. Reducing noise during acquisition is crucial to improve EEG data quality, especially at higher fields. In this article, we assessed the importance of EEG cable length and geometry on noise sensitivity, at 7T, at the level of transmission between the cap and amplifiers.
As for the previously mentioned US patents, Brain Products is proud to have received the official confirmation for the European patent EP 2474263 B1 (dry electrode) as well as for the Utility Model 202011104334.0 (EEG electrode with an indicator to improve safety in EEG recordings).
