Search Results - "LeVan, Pierre"

Ultra-fast magnetic resonance encephalography of physiological brain activity – Glymphatic pulsation mechanisms? by Kiviniemi, Vesa, Wang, Xindi, Korhonen, Vesa, Keinänen, Tuija, Tuovinen, Timo, Autio, Joonas, LeVan, Pierre, Keilholz, Shella, Zang, Yu-Feng, Hennig, Jürgen, Nedergaard, Maiken

“…The theory on the glymphatic convection mechanism of cerebrospinal fluid holds that cardiac pulsations in part pump cerebrospinal fluid from the peri-arterial…”
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Interictal high‐frequency oscillations (80–500 Hz) are an indicator of seizure onset areas independent of spikes in the human epileptic brain by Jacobs, Julia, LeVan, Pierre, Chander, Rahul, Hall, Jeffery, Dubeau, François, Gotman, Jean

“…Summary Purpose:  High‐frequency oscillations (HFOs) known as ripples (80–250 Hz) and fast ripples (250–500 Hz) can be recorded from macroelectrodes inserted…”
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Tracking dynamic resting-state networks at higher frequencies using MR-encephalography by Lee, Hsu-Lei, Zahneisen, Benjamin, Hugger, Thimo, LeVan, Pierre, Hennig, Jürgen

“…Current resting-state network analysis often looks for coherent spontaneous BOLD signal fluctuations at frequencies below 0.1Hz in a multiple-minutes scan…”
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The neuronal associations of respiratory-volume variability in the resting state by Shams, Seyedmohammad, LeVan, Pierre, Chen, J. Jean

“…The desire to enhance the sensitivity and specificity of resting-state (rs-fMRI) measures has prompted substantial recent research into removing noise…”
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The identification of distinct high-frequency oscillations during spikes delineates the seizure onset zone better than high-frequency spectral power changes by Jacobs, Julia, Vogt, Christina, LeVan, Pierre, Zelmann, Rina, Gotman, Jean, Kobayashi, Katsuhiro

“…Highlights • High frequency power increases and decreases during spikes do not occur in the same brain regions as high frequency oscillations (HFO). • HFO…”
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The Evolution and Future of Spinal Drains for Thoracic Aortic Aneurysm Repair: A Review by Oftadeh, Mina, Ural, Nil, LeVan, Pierre, Prabhu, Vikram, Haske, Michael

“…For decades, spinal drains for cerebrospinal fluid (CSF) pressure monitoring and drainage have been used as adjuncts to protect against spinal cord injury…”
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Heart Transplantation in an Era of Mechanical Circulatory Support by Kwak, Jenny, Majewski, Michael, LeVan, Pierre T.

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Content-Free Awareness: EEG-fcMRI Correlates of Consciousness as Such in an Expert Meditator by Winter, Ulf, LeVan, Pierre, Borghardt, Tilmann L, Akin, Burak, Wittmann, Marc, Leyens, Yeshe, Schmidt, Stefan

“…The minimal neural correlate of the conscious state, regardless of the neural activity correlated with the ever-changing contents of experience, has still not…”
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High frequency oscillations in intracranial EEGs mark epileptogenicity rather than lesion type by Jacobs, Julia, LeVan, Pierre, Châtillon, Claude-Édouard, Olivier, André, Dubeau, François, Gotman, Jean

“…High frequency oscillations (HFOs) called ripples (80–250 Hz) and fast ripples (FR, 250–500 Hz) can be recorded from intracerebral EEG macroelectrodes in…”
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The variability of functional MRI brain signal increases in Alzheimer's disease at cardiorespiratory frequencies by Tuovinen, Timo, Kananen, Janne, Rajna, Zalan, Lieslehto, Johannes, Korhonen, Vesa, Rytty, Riikka, Mattila, Heli, Huotari, Niko, Raitamaa, Lauri, Helakari, Heta, Elseoud, Ahmed Abou, Krüger, Johanna, LeVan, Pierre, Tervonen, Osmo, Hennig, Juergen, Remes, Anne M., Nedergaard, Maiken, Kiviniemi, Vesa

“…Biomarkers sensitive to prodromal or early pathophysiological changes in Alzheimer’s disease (AD) symptoms could improve disease detection and enable timely…”
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From correlation to causation: Estimating effective connectivity from zero-lag covariances of brain signals by Schiefer, Jonathan, Niederbühl, Alexander, Pernice, Volker, Lennartz, Carolin, Hennig, Jürgen, LeVan, Pierre, Rotter, Stefan

“…Knowing brain connectivity is of great importance both in basic research and for clinical applications. We are proposing a method to infer directed…”
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Probing hippocampal stimulation in experimental temporal lobe epilepsy with functional MRI by Schwaderlapp, Niels, Paschen, Enya, LeVan, Pierre, von Elverfeldt, Dominik, Haas, Carola A

“…Electrical neurostimulation is currently used to manage epilepsy, but the most effective approach for minimizing seizure occurrence is uncertain. While…”
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Early tissue damage and microstructural reorganization predict disease severity in experimental epilepsy by Janz, Philipp, Schwaderlapp, Niels, Heining, Katharina, Häussler, Ute, Korvink, Jan G, von Elverfeldt, Dominik, Hennig, Jürgen, Egert, Ulrich, LeVan, Pierre, Haas, Carola A

“…Mesial temporal lobe epilepsy (mTLE) is the most common focal epilepsy in adults and is often refractory to medication. So far, resection of the epileptogenic…”
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Effects of fluctuating physiological rhythms during prolonged EEG-fMRI studies by Tyvaert, Louise, LeVan, Pierre, Grova, Christophe, Dubeau, François, Gotman, Jean

“…Abstract Objective We evaluated BOLD correlates of alertness fluctuations commonly seen during prolonged EEG-fMRI studies to better define the brain areas…”
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Concordance of Epileptic Networks Associated with Epileptic Spikes Measured by High-Density EEG and Fast fMRI by Jäger, Vera, Dümpelmann, Matthias, LeVan, Pierre, Ramantani, Georgia, Mader, Irina, Schulze-Bonhage, Andreas, Jacobs, Julia

“…The present study aims to investigate whether a newly developed fast fMRI called MREG (magnetic resonance encephalography) measures metabolic changes related…”
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Fast undersampled functional magnetic resonance imaging using nonlinear regularized parallel image reconstruction by Hugger, Thimo, Zahneisen, Benjamin, LeVan, Pierre, Lee, Kuan Jin, Lee, Hsu-Lei, Zaitsev, Maxim, Hennig, Jürgen

“…In this article we aim at improving the performance of whole brain functional imaging at very high temporal resolution (100 ms or less). This is achieved by…”
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Histological Correlates of Diffusion-Weighted Magnetic Resonance Microscopy in a Mouse Model of Mesial Temporal Lobe Epilepsy by Göbel-Guéniot, Katharina, Gerlach, Johannes, Kamberger, Robert, Leupold, Jochen, von Elverfeldt, Dominik, Hennig, Jürgen, Korvink, Jan G., Haas, Carola A., LeVan, Pierre

“…Mesial temporal lobe epilepsy is the most common type of focal epilepsy. It is frequently associated with abnormal MRI findings, which are caused by underlying…”
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Sparse Estimation of Resting-State Effective Connectivity From fMRI Cross-Spectra by Lennartz, Carolin, Schiefer, Jonathan, Rotter, Stefan, Hennig, Jürgen, LeVan, Pierre

“…In functional magnetic resonance imaging (fMRI), functional connectivity is conventionally characterized by correlations between fMRI time series, which are…”
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High‐Frequency Intracerebral EEG Activity (100–500 Hz) Following Interictal Spikes by Urrestarazu, Elena, Jirsch, Jeffrey D., LeVan, Pierre, Hall, Jeffery

“…Purpose: High‐frequency activity has been recorded with intracerebral microelectrodes in epileptic patients and related to seizure genesis. Our goal was to…”
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Corrigendum: Histological Correlates of Diffusion-Weighted Magnetic Resonance Microscopy in a Mouse Model of Mesial Temporal Lobe Epilepsy by Göbel-Guéniot, Katharina, Gerlach, Johannes, Kamberger, Robert, Leupold, Jochen, von Elverfeldt, Dominik, Hennig, Jürgen, Korvink, Jan G., Haas, Carola A., LeVan, Pierre

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