Document Detail


The effect of applying orthogonal projection technique in short window segments to obtain fetal magnetocardiogram.
MedLine Citation:
PMID:  24109713     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Non-invasive recordings of fetal heart and brain have been possible for almost a decade with the advancement in biomagnetic sensors using the SQUID (Superconducting Quantum Interference Device) technology. Techniques such as orthogonal projection and ICA have been applied to attenuate interference from other biological sources such as maternal heart. Successful application of such techniques among other factors depend on the non-stationary characteristics of the signals. To minimize the effect of non-stationarity due to maternal and/or fetal movement in long duration datasets, we proposed to investigate the minimal time window that is needed to obtain averaging with good SNR to apply the orthogonal projection technique to attenuate maternal magnetocardiogram (MCG) and obtain fetal MCG. The quantifying measure is based on spectral power of signals from 151-channel SQUID array system.
Authors:
Bhargavi Sriram; James D Wilson; Rathinaswamy B Govindan; Curtis L Lowery; Hubert Preissl; Hari Eswaran
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference     Volume:  2013     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2013 Jul 
Date Detail:
Created Date:  2013-10-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  421-424     Citation Subset:  -    
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