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Journal of Ultrasound in Medicine, Vol 13, Issue 1 19-25, Copyright © 1994 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

New method for tracking fetal breathing movements using real-time pulsed Doppler ultrasonographic displacement measurement

N. Shinozuka, Y. Yamakoshi and Y. Taketani
Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyko, Japan.

To develop a clinical device for monitoring FBM with a simplified mechanism, the multichannel pulsed Doppler device was achieved by modifying the ultrasonographic module and probe of a cardiotocograph. A new algorithm of signal processing with a high-accuracy displacement estimation technique produced real-time and continuous displacement calculations. In vivo measurements demonstrated that real-time output produced commendable quality in FBM tracking. The displacement of a few hundred micrometers because of FBM was measured successfully. The results suggest that quantitative assessments of FBM should be possible with this technique.




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Copyright © 1994 by the American Institute of Ultrasound in Medicine.