ArticleNeuroImage2012
Removal of interference from fetal MEG by frequency dependent subtraction.
Article in NeuroImage, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Magnetomyographic assessment of pelvic floor muscles compared to ultrasound during pregnancy.Physiological reports · 2025Article
- Comparison of non-invasive magnetomyography to Brink score for assessment of pelvic floor muscle strength.Physiological measurement · 2024Article
- Correlating maternal and cord-blood inflammatory markers and BDNF with human fetal brain activity recorded by magnetoencephalography: An exploratory study.Brain, behavior, & immunity - health · 2024Article
- Frequency Domain Template Subtraction Approach to Attenuate Maternal Electrocardiogram in Fetal Electrocardiogram.NeuroSci · 2024Article
- Correlation of fetal heart rate dynamics to inflammatory markers and brain-derived neurotrophic factor during pregnancy.Journal of perinatal medicine · 2024Article
- Spatial and Frequency Specific Artifact Reduction in Optically Pumped Magnetometer Recordings.Journal of integrative neuroscience · 2022Article
- The physiological basis underlying functional connectivity differences in older adults: A multi-modal analysis of resting-state fMRI.Brain imaging and behavior · 2022Article
- Magnetomyographic Recordings of Pelvic Floor Activity During Pregnancy and Postpartum: A Novel Non-invasive Approach.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2019Article
- Fetal assessment in buprenorphine-maintained women using fetal magnetoencephalography: a pilot study.Addiction (Abingdon, England) · 2018Article
- Selection of Reference Channels Based on Mutual Information for Frequency-Dependent Subtraction Method Applied to Fetal Biomagnetic Signals.IEEE transactions on bio-medical engineering · 2017Article
- Separation of Physiological Signals Using Minimum Norm Projection Operators.IEEE transactions on bio-medical engineering · 2017Article
- Effect of electrocardiogram interference on cortico-cortical connectivity analysis and a possible solution.Journal of neuroscience methods · 2016Article
- Genetic algorithms for dipole location of fetal magnetocardiography.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2016Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
Fetal magnetoencephalography (fMEG) recordings are contaminated by maternal and fetal magnetocardiography (MCG) signals and by other biological and environmental interference. Currently, all methods for the attenuation of these signals are based on a time-domain approach. We have developed and tested a frequency dependent procedure for removal of MCG and other interference from the fMEG recordings. The method uses a set of reference channels and performs subtraction of interference in the frequency domain (SUBTR). The interference-free frequency domain signals are converted back to the time domain. We compare the performance of the frequency dependent approach with our present approach for MCG attenuation based on orthogonal projection (OP). SUBTR has an advantage over OP and similar template approaches because it removes not only the MCG but also other small amplitude biological interference, avoids the difficulties with inaccurate determination of the OP operator, provides more consistent and stable fMEG results, does not cause signal redistribution, and if references are selected judiciously, it does not reduce fMEG signal amplitude. SUBTR was found to perform well in simulations and on real fMEG recordings, and has a potential to improve the detection of fetal brain signals. The SUBTR removes interference without the need for a model of the individual interference sources. The method may be of interest for any sensor array noise reduction application where signal-free reference channels are available.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.