PMID: 11324964Apr 28, 2001Paper

Rapidly recomputable EEG forward models for realistic head shapes

Physics in Medicine and Biology
J J ErmerR M Leah

Abstract

With the increasing availability of surface extraction techniques for magnetic resonance and x-ray computed tomography images, realistic head models can be readily generated as forward models in the analysis of electroencephalography (EEG) and magnetoencephalography (MEG) data. Inverse analysis of this data, however, requires that the forward model be computationally efficient. We propose two methods for approximating the EEG forward model using realistic head shapes. The 'sensor-fitted sphere' approach fits a multilayer sphere individually to each sensor, and the 'three-dimensional interpolation' scheme interpolates using a grid on which a numerical boundary element method (BEM) solution has been precomputed. We have characterized the performance of each method in terms of magnitude and subspace error metrics, as well as computational and memory requirements. We have also made direct performance comparisons with traditional spherical models. The approximation provided by the interpolative scheme had an accuracy nearly identical to full BEM, even within 3 mm of the inner skull surface. Forward model computation during inverse procedures was approximately 30 times faster than for a traditional three-shell spherical model. Cast i...Continue Reading

References

Aug 1, 1979·Electroencephalography and Clinical Neurophysiology·B N Cuffin, D Cohen
Jul 1, 1992·IEEE Transactions on Bio-medical Engineering·J Z WangL Kaufman
Jun 1, 1992·IEEE Transactions on Bio-medical Engineering·J C MosherR M Leahy
Feb 1, 1989·IEEE Transactions on Bio-medical Engineering·M S Hämäläinen, J Sarvas
Mar 1, 1973·IEEE Transactions on Bio-medical Engineering·D A BrodyR E Ideker
Jun 1, 1981·IEEE Transactions on Bio-medical Engineering·J P AryD H Fender
Jan 1, 1994·Electroencephalography and Clinical Neurophysiology·P Berg, M Scherg
Nov 1, 1993·IEEE Transactions on Bio-medical Engineering·J C de Munck, M J Peters
Sep 29, 1998·Electroencephalography and Clinical Neurophysiology·R M LeahyJ D Lewine
Mar 10, 1999·Physics in Medicine and Biology·M X HuangR M Leahy
Mar 31, 1999·IEEE Transactions on Bio-medical Engineering·J C MosherP S Lewis

❮ Previous
Next ❯

Citations

Jul 24, 2002·Medical Engineering & Physics·Bart VanrumstePaul A J M Boon
Aug 8, 2012·Nature Reviews. Neurology·Kitti KaiboriboonSamden D Lhatoo
Apr 7, 2007·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Manfred FuchsJoern Kastner
Feb 20, 2010·Computational Intelligence and Neuroscience·Federica VattaFrancesco Di Salle
Aug 16, 2008·Journal of Cognitive Neuroscience·Davina BristowJean-François Mangin
Dec 7, 2007·Journal of Neuroengineering and Rehabilitation·Hans HallezIgnace Lemahieu
Feb 25, 2010·Biomedizinische Technik. Biomedical Engineering·Fabio MeneghiniFrancesco Di Salle
Sep 15, 2009·Journal of Neuroscience Methods·Pedro A Valdés-HernándezPedro A Valdés-Sosa
Apr 7, 2007·Psychiatry Research·Robert J ThomaJose M Cañive
Jan 25, 2013·International Journal for Numerical Methods in Biomedical Engineering·B R YitembeL Dupré
Feb 4, 2010·Developmental Science·Savita BernalAnne Christophe
Mar 12, 2005·IEEE Transactions on Bio-medical Engineering·Federica VattaPaolo Inchingolo
Sep 8, 2004·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Christoph M MichelRolando Grave de Peralta
Jun 9, 2015·IEEE Transactions on Bio-medical Engineering·Martin BauerCarsten H Wolters
Dec 22, 2005·NeuroImage·Jérémie MattoutKarl J Friston
Mar 5, 2014·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Andrei IrimiaTimothy T Brown
Apr 29, 2009·NeuroImage·Richard N HensonKarl J Friston
Jan 31, 2006·International Review of Neurobiology·Arjan Hillebrand, Gareth R Barnes
May 31, 2012·Statistical Methods in Medical Research·F S NathooC B Dean
Nov 16, 2016·Physics in Medicine and Biology·S PursiainenC H Wolters
Dec 9, 2004·Physics in Medicine and Biology·Zeynep Akalin-Acar, Nevzat G Gençer
Apr 22, 2015·The Open Biomedical Engineering Journal·Li PengAnhuai Xu
Jun 4, 2010·Asian Cardiovascular & Thoracic Annals·Athanasios KrassasEvangelos Sepsas
Mar 13, 2003·Physics in Medicine and Biology·Satu Tissari, Jussi Rahola
Nov 22, 2013·Journal of Neurophysiology·Elizabeth B Torres, Kyuwan Choi
Mar 13, 2003·Physics in Medicine and Biology·A P GibsonD T Delpy

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.