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Simultaneous EEG–fMRI at ultra-high field: Artifact prevention and safety assessment

João Jorge, Frédéric Grouiller, Özlem Ipek, Robert Stoermer, Christoph M. Michel, Patrícia Figueiredo, Wietske van der Zwaag, Rolf Gruetter
2015 NeuroImage  
Subject safety was assessed and confirmed via numerical simulations of RF power distribution and temperature measurements on a phantom model, building on the limited existing literature at ultra-high field  ...  However, simultaneous recordings are susceptible to various types of artifacts, many of which scale with magnetic field strength and can seriously compromise both EEG and fMRI data quality in recordings  ...  An optimized setup with ultra-short bundled transmission cables was implemented and tested for simultaneous EEG-fMRI, at 7 T.  ... 
doi:10.1016/j.neuroimage.2014.10.055 pmid:25449743 fatcat:qxlfhyrlxrdkvk44lajla4awrm

Windows on the Human Body – in Vivo High-Field Magnetic Resonance Research and Applications in Medicine and Psychology

Ewald Moser, Martin Meyerspeer, Florian Ph. S. Fischmeister, Günther Grabner, Herbert Bauer, Siegfried Trattnig
2010 Sensors  
Recent achievements in high and ultra-high field MR (at 3 and 7 Tesla) are described, and representative research applications in Medicine and Psychology in Austria are discussed.  ...  Finally, an overview of current and prospective research in multi-modal imaging, potential clinical applications, as well as current limitations and challenges is given.  ...  Acknowledgements EM and ST acknowledge an unrestricted research grant by Siemens Medical Solutions to support basic and clinical research into 7 Tesla MRI and MRS.  ... 
doi:10.3390/s100605724 pmid:22219684 pmcid:PMC3247729 fatcat:bb4amgcex5g5topl2o7wlkkeja

Safety and EEG data quality of concurrent high-density EEG and high-speed fMRI at 3 Tesla

Mette Thrane Foged, Ulrich Lindberg, Kishore Vakamudi, Henrik B. W. Larsson, Lars H. Pinborg, Troels W. Kjær, Martin Fabricius, Claus Svarer, Brice Ozenne, Carsten Thomsen, Sándor Beniczky, Olaf B. Paulson (+2 others)
2017 PLoS ONE  
ratio (SNR) in fMRI, and assess EEG data quality.  ...  EEG-fMRI safety and quality PLOS ONE | https://doi.  ...  We are indebted to our healthy controls and patients who participated in long and arduous scans. Author Contributions  ... 
doi:10.1371/journal.pone.0178409 pmid:28552957 pmcid:PMC5446172 fatcat:sueci3spirhr5f7qc54ui4wdsu

EEG-Informed fMRI: A Review of Data Analysis Methods

Rodolfo Abreu, Alberto Leal, Patrícia Figueiredo
2018 Frontiers in Human Neuroscience  
Fernando Lopes da Silva for his feedback and help in structuring this paper.  ...  The use of specifically designed low-SAR sequences is therefore crucial to ensure subject safety and comfort in simultaneous EEG-fMRI recordings at ultra-high fields (Nöth et al., 2012) .  ...  the recording of high-density EEG data at ultra-high magnetic field strengths (Poulsen et al., 2017) .  ... 
doi:10.3389/fnhum.2018.00029 pmid:29467634 pmcid:PMC5808233 fatcat:vocpso63pjeg3ktkqwrsvf6ixe

Adaptive and Wireless Recordings of Electrophysiological Signals during Concurrent Magnetic Resonance Imaging [article]

Ranajay Mandal, Nishant Babaria, Jiayue Cao, Zhongming Liu
2018 bioRxiv   pre-print
The device detects changes in the electromagnetic field during fMRI and synchronizes amplification and sampling of electrophysiological signals to minimize effects of gradient and RF artifacts.  ...  This device is expected to enable easier and a broader range of applications of simultaneous fMRI and electrophysiology in animals and humans.  ...  Such amplifiers are frequently used along with additional shielding and powering modules, making the whole system complex, expensive, and of safety concern, especially in high-field MRI [17] , [24] -  ... 
doi:10.1101/259762 fatcat:peb6lbklarbdflfu5qdjtqqdxq

Magnetic Resonance Imaging technology — bridging the gap between noninvasive human imaging and optical microscopy

Jonathan R Polimeni, Lawrence L Wald
2018 Current Opinion in Neurobiology  
This has motivated a push toward novel, high-resolution MR imaging strategies that can match this biological resolution limit while recording from the entire human brain.  ...  Technological advances in Magnetic Resonance Imaging (MRI) have provided substantial gains in the sensitivity and specificity of functional neuroimaging.  ...  Bastien Guérin, Kawin Setsompop, and Thomas Witzel for helpful comments, and Dr. Berkin Bilgic for help with the wave-CAIPI sampling simulation.  ... 
doi:10.1016/j.conb.2018.04.026 pmid:29753942 pmcid:PMC6015259 fatcat:7msf5i7k5ja3tpavexhuzlw7wu

Advanced neuroimaging techniques in the evaluation of pediatric epilepsy

Yun Jeong Lee
2019 Korean Journal of Pediatrics  
Ultra-high-field imaging and postprocessing analysis with automated machine learning algorithms can detect subtle structural abnormalities in MRI-negative patients.  ...  Arterial spin-labeling perfusion MRI, simultaneous electroencephalography (EEG)-functional MRI (fMRI), and magnetoencephalography (MEG) are noinvasive imaging modalities that can be used to localize the  ...  Advances in structural neuroimaging Ultra-high-field MRI The detection rate of subtle epileptic lesions is also affected by the magnetic field strength.  ... 
doi:10.3345/kjp.2019.00871 pmid:32024331 pmcid:PMC7073377 fatcat:s4fjw5vmifhbxknbo22eh73doi

An Update on Promising Diagnostic and Therapeutic Interventions in Epilepsy

Leonard LL Yeo Jonathan YY Ong
2011 Journal of Neurology & Neurophysiology  
The novel discovery of high frequency EEG oscillations introduces new concepts of epileptogenicity. Also, techniques that couple EEG with imaging data will be discussed.  ...  The early intervention to abort seizures using a method that is easily administered by paramedic staff in the field has been shown to result in more rapid seizure cessation we elaborate on the pre-hospital  ...  Although small scale animal studies have been performed, they are preliminary and larger scale and longer term clinical trials assessing efficacy and safety have yet to be performed.  ... 
doi:10.4172/2155-9562.s2-005 fatcat:rajfdgxvvrfxphzteb6ouhhmny

Using fMRI to Examine Central Auditory Plasticity [chapter]

Deborah Hall, Cornelis Lanting, Douglas Hartley
2014 Advanced Brain Neuroimaging Topics in Health and Disease - Methods and Applications  
agree on the advantages of ultra-high field fMRI (i.e. ≥ 7 Tesla), that is, the increased signal-to-noise ratio.  ...  Unlike EEG, NIRS is not affected by CI-generated electrical artifacts.  ... 
doi:10.5772/58262 fatcat:tbqsim27drgslj4wfhl7xrztza

Wearable, Integrated EEG–fNIRS Technologies: A Review

Julie Uchitel, Ernesto E. Vidal-Rosas, Robert J. Cooper, Hubin Zhao
2021 Sensors  
There has been considerable interest in applying electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) simultaneously for multimodal assessment of brain function.  ...  EEG–fNIRS can provide a comprehensive picture of brain electrical and hemodynamic function and has been applied across various fields of brain science.  ...  Although fMRI has been successfully applied in multimodal studies (EEG-fMRI [3] ), the limitations of this technologies (such as its fixed location, high cost, and patient discomfort) inhibit its application  ... 
doi:10.3390/s21186106 pmid:34577313 pmcid:PMC8469799 fatcat:d7uswb4tyfhe7pvsnyin4xdb5y

Brain Computer Interfaces, a Review

Luis Fernando Nicolas-Alonso, Jaime Gomez-Gil
2012 Sensors  
Third, the review includes some techniques used in the signal enhancement step to deal with the artifacts in the control signals and improve the performance.  ...  Here, we review the state-of-the-art of BCIs, looking at the different steps that form a standard BCI: signal acquisition, preprocessing or signal enhancement, feature extraction, classification and the  ...  The regularization is estimated through Bayesian analysis of training data and is used to prevent overfitting of high dimensional and possibly noisy datasets.  ... 
doi:10.3390/s120201211 pmid:22438708 pmcid:PMC3304110 fatcat:rinslsoovba4hizv3ugwdy6g2e

Neural Entrainment Determines the Words We Hear

Anne Kösem, Hans Rutger Bosker, Atsuko Takashima, Antje Meyer, Ole Jensen, Peter Hagoort
2018 Current Biology  
The main procedures to record clean data are (1) to prevent artifacts from occurring in the first place, (2) to reject MEG (and any simultaneously recorded biosignal) epochs grossly contaminated by artifacts  ...  Artifacts MEG signals are smaller than many biological and non-biological magnetic fields, and thus prevention and recognition of artifacts is an important consideration in an MEG recording.  ... 
doi:10.1016/j.cub.2018.07.023 pmid:30197083 fatcat:igzyfe6azjav3p2nrcmr22xeby

USING NON-INVASIVE NEUROIMAGING TO ENHANCE THE CARE, WELL-BEING AND EXPERIMENTAL OUTCOMES OF LABORATORY NON-HUMAN PRIMATES (MONKEYS)

M.A. Basso, S. Frey, K.A. Guerriero, B. Jarraya, S. Kastner, K.W. Koyano, D.A. Leopold, K. Murphy, C. Poirier, W. Pope, A.C. Silva, G. Tansey (+1 others)
2020 NeuroImage  
Simultaneously, with access to MRI in many research institutions, MRI has become an indispensable tool for researchers and veterinarians to guide improvements in surgical procedures and implants and thus  ...  We aimed to provide guidance for other researchers, scientists and veterinarians in the use of this powerful imaging technology as well as to foster a larger conversation and community of scientists and  ...  There are reports of simultaneous EEG-fMRI modalities in macaques but the use of EEG inside the MRI suite is still not routine in NHPs (Fig. 9 ) (Uhrig et al., 2016; Vincent et al., 2007) .  ... 
doi:10.1016/j.neuroimage.2020.117667 pmid:33359353 pmcid:PMC8005297 fatcat:nkiaq5zn3bbe3dhaqsvzbltdqe

IFCN-endorsed practical guidelines for clinical magnetoencephalography (MEG)

Riitta Hari, Sylvain Baillet, Gareth Barnes, Richard Burgess, Nina Forss, Joachim Gross, Matti Hämäläinen, Ole Jensen, Ryusuke Kakigi, François Mauguière, Nobukatzu Nakasato, Aina Puce (+3 others)
2018 Clinical Neurophysiology  
MEG and electroencephalography (EEG) are closely related complementary methods and should be interpreted together whenever possible.  ...  The main principles of magnetoencephalography (MEG) and the value of combined MEG and EEG are discussed. Established and some potential future clinical applications of MEG are reviewed.  ...  The main procedures to record clean data are (1) to prevent artifacts from occurring in the first place, (2) to reject MEG (and any simultaneously recorded biosignal) epochs grossly contaminated by artifacts  ... 
doi:10.1016/j.clinph.2018.03.042 pmid:29724661 pmcid:PMC6045462 fatcat:dqfw6g7tsrg4blwjmnj3fxm35a

Modern Diagnostic Imaging Technique Applications and Risk Factors in the Medical Field: A Review

Shah Hussain, Iqra Mubeen, Niamat Ullah, Syed Shahab Ud Din Shah, Bakhtawar Abduljalil Khan, Muhammad Zahoor, Riaz Ullah, Farhat Ali Khan, Mujeeb A. Sultan, Chen Li
2022 BioMed Research International  
Advance medical imaging modalities such as PET/CT hybrid, three-dimensional ultrasound computed tomography (3D USCT), and simultaneous PET/MRI give high resolution, better reliability, and safety to diagnose  ...  In the future, with mounting innovations and advancements in technology systems, the medical diagnostic field will become a field of regular measurement of various complex diseases and will provide healthcare  ...  Acknowledgments The authors wish to thank Research Center College of Pharmacy at King Saud University, Riyadh, Saudi Arabia, for their financial support and for providing free access to digital library  ... 
doi:10.1155/2022/5164970 pmid:35707373 pmcid:PMC9192206 fatcat:zkmv55ll3rdkvk2wvej44ickiy
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