Document Detail

Clinically accurate fetal ECG parameters acquired from maternal abdominal sensors.
MedLine Citation:
PMID:  21514560     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: We sought to evaluate the accuracy of a novel system for measuring fetal heart rate (FHR) and ST-segment changes using noninvasive electrodes on the maternal abdomen.
STUDY DESIGN: Fetal electrocardiograms were recorded using abdominal sensors from 32 term laboring women who had a fetal scalp electrode (FSE) placed for a clinical indication.
RESULTS: Good-quality data for FHR estimation were available in 91.2% of the FSE segments and 89.9% of the abdominal electrode segments. The root mean square error between the FHR data calculated by both methods over all processed segments was 0.36 beats per minute. ST deviation from the isoelectric point ranged from 0-14.2% of R-wave amplitude. The root mean square error between the ST change calculated by both methods averaged over all processed segments was 3.2%.
CONCLUSION: FHR and ST change acquired from the maternal abdomen is highly accurate and, on average, is clinically indistinguishable from FHR and ST change calculated using FSE data.
Gari Clifford; Reza Sameni; Jay Ward; Julian Robinson; Adam J Wolfberg
Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2011-03-05
Journal Detail:
Title:  American journal of obstetrics and gynecology     Volume:  205     ISSN:  1097-6868     ISO Abbreviation:  Am. J. Obstet. Gynecol.     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-11-17     Completed Date:  2012-01-18     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  0370476     Medline TA:  Am J Obstet Gynecol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  47.e1-5     Citation Subset:  AIM; IM    
Copyright Information:
Copyright © 2011 Mosby, Inc. All rights reserved.
Department of Engineering Science, the University of Oxford, Oxford, England, UK.
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MeSH Terms
Electrocardiography / instrumentation,  methods*
Fetal Monitoring / instrumentation,  methods*
Fetus / physiology
Heart Rate, Fetal / physiology
Young Adult
Grant Support
1K23HD060662-01A1/HD/NICHD NIH HHS; 1R43HD059263-01A1/HD/NICHD NIH HHS; K23 HD060662-03/HD/NICHD NIH HHS

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