Title :
Long-term Phonocardiographic Fetal Home Monitoring for Telemedicine Systems
Author :
Kovacs, F. ; Horváth, Cs ; Török, M. ; Hosszu, G.
Author_Institution :
Pazmany P. Catholic Univ., Budapest
Abstract :
A novel compact method for fetal home monitoring optimized for long data acquisition time and low communication costs is presented. The method incorporates the preprocessing of disturbed acoustic signal received on the maternal abdomen. The basic idea of the preprocessing is that the detection of the systolic and diastolic sounds takes place on two separated frequency bands with autocorrelation on predicted time intervals. Measurements on 47 selected pregnant women have shown that the use of this method significantly reduces the amount of data to be transferred to the computer centre in the hospital, where only the very disturbed time periods have to be evaluated. Based on this method a new, phonocardiographic fetal telemedicine system can be built without time limitation of measurements
Keywords :
acoustic signal processing; bioacoustics; cardiology; data acquisition; medical signal processing; obstetrics; patient monitoring; telemedicine; diastolic sounds; disturbed acoustic signal preprocessing; long data acquisition time; long-term phonocardiographic fetal home monitoring; low communication costs; maternal abdomen; pregnant women; systolic sounds; telemedicine systems; Abdomen; Acoustic signal detection; Autocorrelation; Cost function; Data acquisition; Frequency; Monitoring; Optimization methods; Telemedicine; Time measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1615325
