17 Result(s)

within Louis Lemieux

Relevance Newest First Oldest First
and

  1. No Access

    Article

    Simultaneous Intracranial EEG-fMRI Shows Inter-Modality Correlation in Time-Resolved Connectivity Within Normal Areas but Not Within Epileptic Regions

    For the first time in research in humans, we used simultaneous icEEG-fMRI to examine the link between connectivity in haemodynamic signals during the resting-state (rs) and connectivity derived from electrophy...

    Ben Ridley, Jonathan Wirsich, Gaelle Bettus, Roman Rodionov… in Brain Topography (2017)

  2. No Access

    Protocol

    fMRI in Epilepsy

    This chapter provides an overview of the application of functional MRI applied to the field of Epilepsy and is divided into two sections, covering cognitive mapping and imaging of paroxysmal activity, respecti...

    Rachel C. Thornton, Louis André van Graan… in fMRI Techniques and Protocols (2016)

  3. No Access

    Article

    Characterisation and Reduction of the EEG Artefact Caused by the Helium Cooling Pump in the MR Environment: Validation in Epilepsy Patient Data

    The EEG acquired simultaneously with fMRI is distorted by a number of artefacts related to the presence of strong magnetic fields, which must be reduced in order to allow for a useful interpretation and quanti...

    Sven Rothlübbers, Vânia Relvas, Alberto Leal, Teresa Murta… in Brain Topography (2015)

  4. No Access

    Chapter

    Combining fMRI with Other Modalities: Multimodal Neuroimaging

    In this chapter, we address the combination of functional MRI (fMRI) with other neuroimaging modalities. The concept of multimodal imaging can mean different things to different people, but in our mind fundame...

    Louis Lemieux, Kevin Whittingstall… in fMRI: From Nuclear Spins to Brain Functions (2015)

  5. No Access

    Article

    Generalized Spike and Waves: Effect of Discharge Duration on Brain Networks as Revealed by BOLD fMRI

    In the past decade, the possibility of combining recordings of EEG and functional MRI (EEG–fMRI), has brought a new insight into the brain network underlying generalized spike wave discharges (GSWD). Neverthel...

    Matteo Pugnaghi, David W. Carmichael, Anna E. Vaudano… in Brain Topography (2014)

  6. No Access

    Article

    Present and future of simultaneous EEG-fMRI

    The brain’s activity can be measured in numerous complementary ways, including electroencephalography (EEG) and functional magnetic resonance imaging (fMRI). The simultaneous acquisition of EEG and fMRI was or...

    Karin Rosenkranz, Louis Lemieux in Magnetic Resonance Materials in Physics, B… (2010)

  7. No Access

    Book

    EEG - fMRI

    EEG - fMRI

    Physiological Basis, Technique, and Applications

    Christoph Mulert, Louis Lemieux (2010)

  8. No Access

    Chapter

    EEG–fMRI in Adults with Focal Epilepsy

    The application of EEG-correlated fMRI (EEG–fMRI) in adults with focal epilepsy has two principal aims: to improve our understanding of the generators of epileptiform activity and to improve the surgical treat...

    Matthew C. Walker, Umair J. Chaudhary, Louis Lemieux in EEG - fMRI (2010)

  9. No Access

    Chapter

    Experimental Design and Data Analysis Strategies

    As described in earlier chapters, EEG and fMRI are two powerful, noninvasive tools for studying human brain activity. Since they have complementary spatiotemporal properties, with EEG providing millisecond tem...

    Christian-G. Bénar, Andrew P. Bagshaw, Louis Lemieux in EEG - fMRI (2010)

  10. No Access

    Chapter

    Principles of Multimodal Functional Imaging and Data Integration

    In a system as complex as the human brain, one cannot conceive of meaningful events involving a change in a single observable (physiological parameter). Therefore, achieving the ultimate aim of a complete unde...

    Arno Villringer, Christoph Mulert, Louis Lemieux in EEG - fMRI (2010)

  11. No Access

    Protocol

    fMRI in Epilepsy

    This chapter provides an overview of the application of functional MRI applied to the field of Epilepsy and is divided into two sections, covering cognitive mapping and imaging of paroxysmal activity, respecti...

    Rachel Thornton, Robert Powell, Louis Lemieux in fMRI Techniques and Protocols (2009)

  12. No Access

    Chapter and Conference Paper

    Fully Automatic Segmentation of the Hippocampus and the Amygdala from MRI Using Hybrid Prior Knowledge

    The segmentation of macroscopically ill-defined and highly variable structures, such as the hippocampus Hc and the amygdala Am, from MRI requires specific constraints. Here, we describe and evaluate a hybrid segm...

    Marie Chupin, Alexander Hammers… in Medical Image Computing and Computer-Assis… (2007)

  13. No Access

    Chapter and Conference Paper

    Non-linear Registration with the Variable Viscosity Fluid Algorithm

    In this paper we classify inhomogeneous non-linear registration algorithms into those of variable data influence, of variable deformability and of variable model type. As examples we introduce three modificati...

    Hava Lester, Simon R. Arridge… in Information Processing in Medical Imaging (1999)

  14. No Access

    Chapter and Conference Paper

    The Accurate 3D Registration of Stereotactic Radiographs and Non-Stereotactic CT Images Based on Volume Rendering

    We are currently developing a method for the accurate 3D registration of stereotactic radiographs with ’frameless’ CT data based on volume rendering. The image acquisition geometry and the transformation betwe...

    Louis Lemieux, Roger Jagoe in Computer Assisted Radiology / Computergestützte Radiologie (1993)

  15. No Access

    Article

    H-Simplifiabilité et les EquivalencesR H, TH etS H

    Nous montrons ici que les équivalences SH et TH coïncident si H est un complexe fini d'un demi-groupe D. Nous introduisons la notion de demi-groupe H-semplifiable à gauche et nous montrons que RH=SH sin les demig...

    Louis Lemieux in Annali di Matematica Pura ed Applicata (1973)

  16. No Access

    Article

    Simplifiabilité et quasi-simplifiabilité

    Nous démontrons ici les résultats suivants: D étant un demi-groupe. Pour que TD ou SD soit simplifiable à droite, il faut que D soit rectangulaire. Si D est stationnaire à droite, SD est simplifiable à droite. Si...

    Louis Lemieux in Annali di Matematica Pura ed Applicata (1972)

  17. No Access

    Article

    Etude de certaines classes d’equivalence dans les demi-groupes

    Nous étudions ici deux équivalences régulières à droite, définies dans les demigroupes à partir d’un conplexe quelconque. Nous comparons ces équivalences à l’équivalence principale à droiteRh et nous établissons ...

    Louis Lemieux in Annali di Matematica Pura ed Applicata (1971)