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

Volume

4

fYear

1998

fDate

12-15 May 1998

Firstpage

1925

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on

Conference_Location

Seattle, WA

ISSN

1520-6149

Print_ISBN

0-7803-4428-6

Type

conf

DOI

10.1109/ICASSP.1998.681439

Filename

681439