Title :
Automatic detection system of venous air embolism employing signal processing methods
Author :
Schlag, R. ; Korell, U. ; Siegmund, B. ; Pfeiffer, Michael ; Pandit, M.
Author_Institution :
Lehrstuhl fur Regelungstech. & Signaltheorie, Kaiserslautern Univ., Germany
Abstract :
Methods of signal processing which have been developed and tested for the detection of venous embolism using ultrasound Doppler systems are presented. The detection scheme developed is based on a time-frequency characterization of the Doppler signals obtained with a suitable transducer placed on the cartoid vein. The developed scheme has been implemented and tested for the automatic signaling of an embolism which can occur in the course of a surgical operation
Keywords :
acoustic signal detection; air; biomedical equipment; biomedical ultrasonics; blood flow measurement; medical signal processing; patient monitoring; surgery; time-frequency analysis; ultrasonic transducers; Doppler signals; automatic detection system; automatic signaling; cartoid vein; signal processing methods; surgical operation; time-frequency characterization; transducer; ultrasound Doppler systems; venous air embolism; Acoustic signal detection; Acoustic transducers; Blood; Signal analysis; Signal processing; Surgery; System testing; Ultrasonic imaging; Ultrasonic transducers; Veins;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.681439
