Simultaneous EEG and fMRI Recordings (EEG–fMRI)

Moeller, Friederike; Siniatchkin, Michael; Gotman, Jean

doi:10.1007/978-3-030-41874-8_13

Cited by 7 publications

(5 citation statements)

References 151 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The simultaneous recording of EEG and fMRI has provided critical insights into epilepsy research. 1 Empowering fMRI analysis with the specificity of EEG to epileptic activity has created a powerful tool for the study of brain regions involved in focal 2,3 and generalized epilepsies. 4 Interictal EEG-fMRI studies have proved useful in the presurgical evaluation of patients with focal epilepsy, [5][6][7][8] with the aim of localizing the spike onset zone, 3 a marker of the epileptogenic zone.…”

mentioning

confidence: 99%

Association of EEG-fMRI Responses and Outcome After Epilepsy Surgery

et al. 2021

Self Cite

View full text Add to dashboard Cite

Objective:To assess the utility of EEG-fMRI for epilepsy surgery, we evaluated surgical outcome in relation to the resection of the most significant EEG-fMRI response.Methods:Patients with post-operative neuroimaging and follow-up of at least one year were included. In EEG-fMRI responses, we defined as “primary” the cluster with the highest absolute t-value located in the cortex, and evaluated three levels of confidence for the results. The threshold for low confidence was t ≥ 3.1 (p < 0.005); the one for medium confidence corresponded to correction for multiple comparisons with a false discovery rate of 0.05; and a result reached high confidence when the primary cluster was much more significant than the next highest cluster. Concordance with the resection was determined by comparison to post-operative neuroimaging.Results:We evaluated 106 epilepsy surgeries in 84 patients. An increasing association between concordance and surgical outcome with higher levels of confidence was demonstrated. If the peak response was not resected, the surgical outcome was likely to be poor: for the high confidence level, no patient had a good outcome; for the medium and low levels, only 18% and 28% had a good outcome. The positive predictive value remained low for all confidence levels, indicating that removing the maximum cluster did not ensure seizure freedom.Conclusion:Resection of the primary EEG-fMRI cluster, especially in high confidence cases, is necessary to obtain a good outcome, but not sufficient.Classification of Evidence:This study provided Class II evidence that failure to resect the primary EEG-fMRI cluster is associated with poorer epilepsy surgery outcomes.

show abstract

mentioning

confidence: 99%

Association of EEG-fMRI Responses and Outcome After Epilepsy Surgery

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Integrating EEG and fMRI or simultaneous EEG-fMRI recording makes it possible to look at a phenomenon from different perspectives ( Mulert and Lemieux, 2009 ). Each of these approaches represents some of the hidden dimensions of reality in clinical studies ( Moeller et al, 2020 ). These signals are related to perceptual and cognitive processing, but they may or may not be locked to an external stimulus.…”

Section: Clinical Applications In Integrating Functional Magnetic Res...mentioning

confidence: 99%

Simultaneous electroencephalography-functional magnetic resonance imaging for assessment of human brain function

Ebrahimzadeh

Saharkhiz

Rajabion

et al. 2022

Front. Syst. Neurosci.

View full text Add to dashboard Cite

Electroencephalography (EEG) and functional Magnetic Resonance Imaging (MRI) have long been used as tools to examine brain activity. Since both methods are very sensitive to changes of synaptic activity, simultaneous recording of EEG and fMRI can provide both high temporal and spatial resolution. Therefore, the two modalities are now integrated into a hybrid tool, EEG-fMRI, which encapsulates the useful properties of the two. Among other benefits, EEG-fMRI can contribute to a better understanding of brain connectivity and networks. This review lays its focus on the methodologies applied in performing EEG-fMRI studies, namely techniques used for the recording of EEG inside the scanner, artifact removal, and statistical analysis of the fMRI signal. We will investigate simultaneous resting-state and task-based EEG-fMRI studies and discuss their clinical and technological perspectives. Moreover, it is established that the brain regions affected by a task-based neural activity might not be limited to the regions in which they have been initiated. Advanced methods can help reveal the regions responsible for or affected by a developed neural network. Therefore, we have also looked into studies related to characterization of structure and dynamics of brain networks. The reviewed literature suggests that EEG-fMRI can provide valuable complementary information about brain neural networks and functions.

show abstract

“…The precise physiological mechanisms underpinning the BOLD contrast are, however, still not fully understood. Multimodal imaging systems which co-record fMRI data with PET (Aiello et al, 2016), EEG (Moeller et al, 2020), NIRS (Scarapicchia et al, 2017), and fluorescence imaging (Schwalm et al, 2017;Lake et al, 2020) are thus being employed to cross-validate the fMRI signals.…”

Section: Imaging Of Brain Hemodynamicsmentioning

confidence: 99%

Photoacoustic Neuroimaging - Perspectives on a Maturing Imaging Technique and its Applications in Neuroscience

Bodea

Westmeyer

2021

Front. Neurosci.

View full text Add to dashboard Cite

A prominent goal of neuroscience is to improve our understanding of how brain structure and activity interact to produce perception, emotion, behavior, and cognition. The brain’s network activity is inherently organized in distinct spatiotemporal patterns that span scales from nanometer-sized synapses to meter-long nerve fibers and millisecond intervals between electrical signals to decades of memory storage. There is currently no single imaging method that alone can provide all the relevant information, but intelligent combinations of complementary techniques can be effective. Here, we thus present the latest advances in biomedical and biological engineering on photoacoustic neuroimaging in the context of complementary imaging techniques. A particular focus is placed on recent advances in whole-brain photoacoustic imaging in rodent models and its influential role in bridging the gap between fluorescence microscopy and more non-invasive techniques such as magnetic resonance imaging (MRI). We consider current strategies to address persistent challenges, particularly in developing molecular contrast agents, and conclude with an overview of potential future directions for photoacoustic neuroimaging to provide deeper insights into healthy and pathological brain processes.

show abstract

Simultaneous EEG and fMRI Recordings (EEG–fMRI)

Cited by 7 publications

References 151 publications

Association of EEG-fMRI Responses and Outcome After Epilepsy Surgery

Association of EEG-fMRI Responses and Outcome After Epilepsy Surgery

Simultaneous electroencephalography-functional magnetic resonance imaging for assessment of human brain function

Photoacoustic Neuroimaging - Perspectives on a Maturing Imaging Technique and its Applications in Neuroscience

Contact Info

Product

Resources

About