tailieunhanh - EURASIP Journal on Applied Signal Processing 2003:3, 287–311 c 2003 Hindawi Publishing

EURASIP Journal on Applied Signal Processing 2003:3, 287–311 c 2003 Hindawi Publishing Corporation An Effective Technique for Enhancing an Intrauterine Catheter Fetal Electrocardiogram Steven L. Horner Department of Electrical Engineering, Bucknell University, Lewisburg, PA 17837, USA Email: shorner@ William M. Holls III University of Illinois, Provena Covenant Medical Center, 1400 West Park Street, Urbana, IL 61801, USA Email: wholls@ Received 11 August 2001 and in revised form 20 August 2002 Physicians can obtain fetal heart rate, electrophysiological information, and uterine contraction activity for determining fetal status from an intrauterine catheters electrocardiogram with the maternal electrocardiogram canceled. In addition, the intrauterine catheter would allow physicians to. | EURASIP Journal on Applied Signal Processing 2003 3 287-311 2003 Hindawi Publishing Corporation An Effective Technique for Enhancing an Intrauterine Catheter Fetal Electrocardiogram Steven L. Horner Department of Electrical Engineering Bucknell University Lewisburg PA 17837 USA Email shorner@ William M. Holls III University of Illinois Provena Covenant Medical Center 1400 West Park Street Urbana IL 61801 USA Email wholls@ Received 11 August 2001 and in revised form 20 August 2002 Physicians can obtain fetal heart rate electrophysiological information and uterine contraction activity for determining fetal status from an intrauterine catheters electrocardiogram with the maternal electrocardiogram canceled. In addition the intrauterine catheter would allow physicians to acquire fetal status with one noninvasive to the fetus biosensor as compared to invasive to the fetus scalp electrode and intrauterine pressure catheter used currently. A real-time maternal electrocardiogram cancellation technique of the intrauterine catheters electrocardiogram will be discussed along with an analysis for the methods effectiveness with synthesized and clinical data. The positive results from an original detailed subjective and objective analysis of synthesized and clinical data clearly indicate that the maternal electrocardiogram cancellation method was found to be effective. The resulting intrauterine catheters electrocardiogram from effectively canceling the maternal electrocardiogram could be used for determining fetal heart rate fetal electrocardiogram electrophysiological information and uterine contraction activity. Keywords and phrases fetal electrocardiogram intrauterine catheter scalp electrode maternal electrocardiogram. 1. INTRODUCTION The invasive scalp electrode has proven to be a reliable technique for acquiring the fetal electrocardiogram FECG during delivery 1 . From the FECG physicians can determine fetal heart rate HR . The HR can then be used to .

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