Probabilistic functional tractography of the human cortex revisited

NeuroImage
Lena TrebaulOlivier David

Abstract

In patients with pharmaco-resistant focal epilepsies investigated with intracranial electroencephalography (iEEG), direct electrical stimulations of a cortical region induce cortico-cortical evoked potentials (CCEP) in distant cerebral cortex, which properties can be used to infer large scale brain connectivity. In 2013, we proposed a new probabilistic functional tractography methodology to study human brain connectivity. We have now been revisiting this method in the F-TRACT project (f-tract.eu) by developing a large multicenter CCEP database of several thousand stimulation runs performed in several hundred patients, and associated processing tools to create a probabilistic atlas of human cortico-cortical connections. Here, we wish to present a snapshot of the methods and data of F-TRACT using a pool of 213 epilepsy patients, all studied by stereo-encephalography with intracerebral depth electrodes. The CCEPs were processed using an automated pipeline with the following consecutive steps: detection of each stimulation run from stimulation artifacts in raw intracranial EEG (iEEG) files, bad channels detection with a machine learning approach, model-based stimulation artifact correction, robust averaging over stimulation pulses....Continue Reading

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Citations

Apr 24, 2019·PLoS Computational Biology·Hannah Choi, Stefan Mihalas
Jul 23, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Spase Petkoski, Viktor K Jirsa
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Mar 5, 2021·NeuroImage·Siqi ZhangVladimir Litvak
May 24, 2021·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Colette BoëxKarl Schaller
Nov 24, 2021·Journal of Neurology·Eva Martinez-LizanaAndreas Schulze-Bonhage

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Software Mentioned

TRACT
SPM12
IntrAnat Electrodes
MarsAtlas
Morphologist
MaxProbMap
Automated Anatomical Labeling AAL
ANTs
BrainVisa

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