Clinically accurate fetal ECG parameters acquired from maternal abdominal sensors - 19/08/11
Résumé |
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.
Le texte complet de cet article est disponible en PDF.Key words : fetal electrocardiogram, fetal monitoring, labor
Plan
| Cite this article as: Clifford G, Sameni R, Ward J, et al. Clinically accurate fetal ECG parameters acquired from maternal abdominal sensors. Am J Obstet Gynecol 2011;205:47.e1-5. |
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| Reprints not available from the authors. |
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| This study was supported by The Safe Fetus Project, Center for Integration of Medicine and Innovative Technology, Boston, MA; Obstetrix Inc, Sunrise, FL; National Institute of Child Health and Human Development (NICHD) (Noninvasive Observation of Natal Activity Garment Project, Small Business Innovation Research Grant no. 1R43HD059263-01A1); and NICHD (The Safe Fetus Project, Grant no. 1K23HD060662-01A1). |
Vol 205 - N° 1
P. 47.e1-47.e5 - juillet 2011 Retour au numéro
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