| Title | Remote foetal heart rate acquisition and analysis |
| Publication Type | Conference Paper |
| Year of Publication | 2000 |
| Authors | Marques, P, Marques de Sa, JP, Bernardes, J, Sousa, P |
| Conference Name | Computers in CardiologyComput Cardiol |
| Date Published | 2000/// |
| Publisher | IEEE |
| Conference Location | Cambridge, MA, USA |
| ISBN Number | 02766574 (ISSN) |
| Keywords | Adaptive algorithms, Adaptive correlation algorithm, Cardiology, Cardiotocography, Client server computer systems, Data acquisition, Data warehouse, Database systems, Electrocardiography, FIR filters, Foetal heart rate, Internet, Patient monitoring, Remote foetal monitoring, Signal filtering and prediction, Sonoscope, Spurious signal noise, Telephone |
| Abstract | The remote foetal monitoring and analysis is part of INTERCARE project - an integrated healthcare system applied to Electrocardiography and Cardiotocography. Its aim is to provide low cost and wide spread technological infrastructure that supports an integrated healthcare system to users and healthcare providers. This paper illustrates the work done in the cardiotocography area. We have developed a system for remote acquisition and analysis of FHR. The system uses a portable 'foetal detector' which can be used by the pregnant woman to acquire the heart beats. This detector sends a modulated audio signal via the telephone line or a computer connected to Internet. At the processing end the signal received by the telephone can be switched to the computer sound acquisition board. The signal is then processed by an application that reads from the soundcard. Due to the noise added by devices and telephone lines, the signal is filtered using optimal FIR filters and is decimated until its band of interest covers the peaks of the heart sounds. Next the signal is processed by a specially developed adaptive correlation algorithm in order to obtain the heart beat instants. The whole process operates in real time. The adaptive correlation algorithm performs a continuous adjustment of the heart beat template and threshold detection levels. |
| URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-0034474836&partnerID=40&md5=c85d04aba26fdb2f92645c8b762f8c40 |
