Results 71 to 80 of about 996,481 (256)

The dynamic functional connectivity peak index: Detection of interictal epileptic activity with fMRI

Epilepsia, EarlyView.
Abstract Objective Epileptogenic zone (EZ) localization is crucial for surgical treatment of patients with medication‐resistant epilepsy. Although simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) can detect interictal discharges for EZ localization, clinical adoption is limited by the need for specialized ...
Lucas E. Sainburg, Alexandra Roche, Ghassan S. Makhoul, Baxter P. Rogers, Shawniqua Williams Roberson, Stefano Meletti, Anna E. Vaudano, Catie Chang, Dario J. Englot, Victoria L. Morgan   +9 more
wiley   +1 more source

The Effect of Low-Frequency Physiological Correction on the Reproducibility and Specificity of Resting-State fMRI Metrics: Functional Connectivity, ALFF, and ReHo

Frontiers in Neuroscience, 2017
The resting-state fMRI (rs-fMRI) signal is affected by a variety of low-frequency physiological phenomena, including variations in cardiac-rate (CRV), respiratory-volume (RVT), and end-tidal CO2 (PETCO2). While these effects have become better understood
Ali M. Golestani, Jonathan B. Kwinta, Jonathan B. Kwinta, Yasha B. Khatamian, J. Jean Chen, J. Jean Chen   +5 more
doaj   +1 more source

Reproducibility and Temporal Structure in Weekly Resting-State fMRI over a Period of 3.5 Years. [PDF]

PLoS ONE, 2015
Resting-state functional MRI (rs-fMRI) permits study of the brain's functional networks without requiring participants to perform tasks. Robust changes in such resting state networks (RSNs) have been observed in neurologic disorders, and rs-fMRI outcome ...
Ann S Choe, Craig K Jones, Suresh E Joel, John Muschelli, Visar Belegu, Brian S Caffo, Martin A Lindquist, Peter C M van Zijl, James J Pekar   +8 more
doaj   +1 more source

Magnetoencephalographic source imaging improves localization of the epileptogenic zone in multimodal imaging evaluation

Epilepsia, EarlyView.
Abstract Objective To assess the added diagnostic value of magnetoencephalographic source imaging (MSI) beyond conventional magnetic resonance imaging (MRI) and fluorodeoxyglucose–positron emission tomography (FDG‐PET) in localizing the epileptogenic zone, with stereo‐electroencephalography (SEEG) and surgical resection serving as reference standards ...
Romain Bouet, Marc Hermier, Karine Ostrowsky‐Coste, Sebastien Daligault, Sandrine Bouvard, Hélène Catenoix, Alexandra Montavont, Sébastien Boulogne, François Mauguière, Sylvain Rheims, Julien Jung   +10 more
wiley   +1 more source

Bayesian multi-modal model comparison: a case study on the generators of the spike and the wave in generalized spike–wave complexes [PDF]

, 2010
We present a novel approach to assess the networks involved in the generation of spontaneous pathological brain activity based on multi-modal imaging data.
Lemieux, L., Vaudano, A.E., Daunizeau, Jean, Lemieux, L, Daunizeau, J., Vaudano, A E, Daunizeau, J, Lemieux, Louis, VAUDANO, Anna Elisabetta   +8 more
core   +1 more source

Pathological hippocampal–cortical hypersynchronization disrupts memory in temporal lobe epilepsy: A multimodal intracranial electroencephalographic–functional magnetic resonance imaging study

Epilepsia, EarlyView.
Abstract Objective Memory impairment is a common comorbidity in temporal lobe epilepsy (TLE) and is thought to arise from hippocampal dysfunction and disrupted interactions within a distributed memory network involving medial temporal, frontal, and parietal cortical regions.
Ruxue Gong, Xiaolong Peng, Rebecca W. Roth, Haris Rashid, William Yun, Daniel L. Drane, Leonardo Bonilha, Lisa McTeague, Ezequiel Gleichgerrcht   +8 more
wiley   +1 more source

Spontaneous low frequency BOLD signal variations from resting-state fMRI are decreased in Alzheimer disease. [PDF]

PLoS ONE, 2017
Previous studies have demonstrated altered brain activity in Alzheimer's disease using task based functional MRI (fMRI), network based resting-state fMRI, and glucose metabolism from 18F fluorodeoxyglucose-PET (FDG-PET).
Samaneh Kazemifar, Kathryn Y Manning, Nagalingam Rajakumar, Francisco A Gómez, Andrea Soddu, Michael J Borrie, Ravi S Menon, Robert Bartha, Alzheimer’s Disease Neuroimaging Initiative   +8 more
doaj   +1 more source

Brain‐wide magnetic resonance imaging analysis of neurobehavioral comorbidities in temporal lobe epilepsy

Epilepsia, EarlyView.
Abstract Objective In temporal lobe epilepsy (TLE), patients often present with neurobehavioral comorbidities encompassing affective and cognitive difficulties. Whereas the latter have been related to atypical connectivity of mesiotemporal and frontotemporal circuits, the brain basis of affective symptoms remains incompletely understood.
Fatemeh Fadaie, Benoit Caldairou, Boris C. Bernhardt, Andrea Bernasconi, Neda Bernasconi   +4 more
wiley   +1 more source

Methodological problems in fMRI studies on acupuncture: a critical review with special emphasis on visual and auditory cortex activations [PDF]

, 2011
Functional magnetic resonance imaging (fMRI) has been used for more than a decade to investigate possible supraspinal mechanisms of acupuncture stimulation. More than 60 studies and several review articles have been published on the topic.
Beißner, Florian, Henke, Christian
core   +1 more source

Absence seizures: Update on signaling mechanisms and networks

Epilepsia Open, EarlyView.
Abstract Absence seizures (AS) are a hallmark of genetic generalized epilepsies (GGE), characterized by brief episodes of impaired consciousness accompanied by electroencephalographic spike‐and‐wave discharges (SWDs). Traditionally attributed to cortico‐thalamo‐cortical (CTC) dysrhythmia, emerging evidence suggests a more intricate pathophysiological ...
Ozlem Akman, Filiz Onat
wiley   +1 more source