Publication

Data-Driven Methods in Simultaneous EEG-fPET-fMRI: Opportunities and Challenges

2025

Abstract

Recent advances in human dynamic functional imaging now allow simultaneous tracking of electrophysiological activity (EEG), hemodynamic responses (fMRI), and metabolic fluctuations using a novel functional [18F]-fluorodeoxyglucose PET technique (fPET-FDG). This tri-modal approach yields an exceptionally rich dataset that captures complementary physiological processes across distinct spatial and temporal scales. This conference paper addresses the analytical challenges and opportunities posed by such datasets, with a particular focus on time-resolved fusion methods capable of probing the intricate interplay among neuronal, hemodynamic, and metabolic dynamics. We first outline the specific signal characteristics and experimental design considerations for tri-modal EEG-fPET-fMRI acquisition. We then discuss existing and emerging approaches for time-resolved data integration and highlight methodological considerations for leveraging versatile, data-driven techniques to advance holistic interpretations of brain function.

Official source

https://infoscience.epfl.ch/entities/publication/40b19059-45cd-422a-8fae-054b6e8ebd2e

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2025

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/40b19059-45cd-422a-8fae-054b6e8ebd2e

About this result

Related concepts (32)

Medical imaging

Medical imaging is the technique and process of imaging the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology). Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease. Medical imaging also establishes a database of normal anatomy and physiology to make it possible to identify abnormalities.

Functional neuroimaging

Functional neuroimaging is the use of neuroimaging technology to measure an aspect of brain function, often with a view to understanding the relationship between activity in certain brain areas and specific mental functions. It is primarily used as a research tool in cognitive neuroscience, cognitive psychology, neuropsychology, and social neuroscience.

Electroencephalography

Electroencephalography (EEG) is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex and allocortex. It is typically non-invasive, with the EEG electrodes placed along the scalp (commonly called "scalp EEG") using the International 10–20 system, or variations of it. Electrocorticography, involving surgical placement of electrodes, is sometimes called "intracranial EEG".