Paper Info
Title
Frequency and Time-Frequency Based Indices For Suction Detection in Rotary Blood Pumps
Abstract
A new suction detection system for rotary blood pumps used in left ventricular assist devices is presented. The system is based on frequency indices combined with a time-frequency extraction feature algorithm. The frequency based indices can detect the changes in the harmonic and subharmonic energy content of the pump flow signal, when a suction event is occurring. The time-frequency extraction feature algorithm can track variations in the standard deviation of the instantaneous frequency of that signal. These two pieces of information are then combined in a weighted decision system to generate a suction alarm. The proposed system has been tested in simulations, in a mock-loop system, and in-vivo tests and produced very satisfactory results
Year
DOI
Venue
2006
10.1109/ICASSP.2006.1660530
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference
Keywords
Field
DocType
biomedical equipment,feature extraction,haemodynamics,medical signal processing,patient care,patient treatment,signal detection,frequency based indices,harmonic energy content,in-vivo tests,left ventricular assist devices,mock-loop system,pump flow signal,rotary blood pumps,subharmonic energy content,suction detection system,time-frequency based indices,time-frequency extraction feature algorithm
Pattern recognition,Detection theory,System testing,Computer science,Harmonic,Feature extraction,Artificial intelligence,Time–frequency analysis,Acoustics,Instantaneous phase,Suction,Standard deviation
Conference
Volume
ISSN
ISBN
2
1520-6149
1-4244-0469-X
Citations 
PageRank 
References 
3
0.75
2
Authors
4
Name
Order
Citations
PageRank
Sérgio Ferreira1225.51
Marwan A Simaan263.29
J. Robert Boston35814.99
Antaki, J.F.494.29