NDLI: Reduction of ballistocardiogram artifact in the simultaneous acquisition of auditory event-related potentials and functional magnetic resonance images

Content Provider	IEEE Xplore Digital Library
Author	Ellingson, M.L. Liebenthal, E. Spanaki, M.V. Prieto, T.E. Binder, J.R. Ropella, K.M.
Copyright Year	2002
Description	Author affiliation: Dept. of Biomed. Eng., Marquette Univ., Milwaukee, WI, USA (Ellingson, M.L.)
Abstract	The combination of electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) is now being used to analyze brain function. However, the ballistocardiogram artifact (BA), which is caused by the pulsatile motion related to the heart beat, dominates the EEG signal in the MR environment. The objective of this research is to reduce these MR-induced artifacts in order to extract useful information from the EEG recordings, specifically auditory event-related potentials (ERPs). The BA was reduced through the use of an algorithm which creates an adaptive BA template by median-filtering the previous 10 artifacts in the EEG signal. The continuously updated template is then subtracted from each BA in the EEG signal. Results are reported for five subjects, and it was found that the results for the mismatch negativities (MMNs) were comparable to those that have previously been reported for studies using auditory frequency deviants. The methods used to reduce the BA in this study demonstrate that the acquisition of auditory ERPs along with the subsequent MMN component can validly be obtained in the MR-environment.
Starting Page	159
Ending Page	160
File Size	164081
Page Count	2
File Format	PDF
ISBN	0780376129
ISSN	1094687X
DOI	10.1109/IEMBS.2002.1134435
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic resonance Electroencephalography Magnetic resonance imaging Spatial resolution Enterprise resource planning Image analysis Magnetic analysis Heart beat Data mining Signal resolution
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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