Functional MRI (fMRI) can be used to map regional changes in cerebral blood flow and the level of haemoglobin oxygenation (BOLD) associated with neuronal activity (Belliveau et al. 1991; Kwong et al. 1992; Ogawa et al. 1992). In 2003 the US Food and Drug Administration raised the value of the static field of no significant risk for MRI to 8 Tesla (T), potentially opening up this technology to large numbers of laboratories in the USA. Regulatory agencies in Europe and Asia reached similar conclusions, and as a result the number of high-field systems worldwide is growing rapidly. The increased static field B 0 allows the potential for improved signal-to-noise ratio (SNR), offering the possibility of increasing spatial resolution and reducing scan times (Wiesinger et al. 2006; Harel et al. 2006). In this chapter, we outline the safety issues raised and the challenges involved in performing EEG at high-field MRI or at static magnetic fields greater than 3 T. © Springer-Verlag Berlin Heidelberg 2010.
CITATION STYLE
Bonmassar, G., & Mullinger, K. J. (2010). Specific issues related to EEG-fMRI at B0 > 3 T. In EEG - fMRI: Physiological Basis, Technique, and Applications (pp. 201–220). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-87919-0_11
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