Title :
"Mean fractal dimension" of blood ultrasonic Doppler signals
Author :
Girault, Jean-Marc ; Kouame, Denis ; Patat, Frédric
Author_Institution :
LUSSI/GIP ULtrasons, Tours, France
Abstract :
This paper deals with the characterization of blood ultrasonic Doppler signals via the computation of the "mean fractal dimension". We show and we discuss the existing links between the "mean fractal dimension" and the well-known mean frequency and the bandwidth usually used to characterize the blood Doppler signals. To finish, we calculate and we discuss all these parameters in the case of in vivo blood Doppler signals.
Keywords :
acoustic signal processing; biomedical ultrasonics; blood flow measurement; filtering theory; fractals; medical signal processing; random processes; bandwidth; blood ultrasonic Doppler signals; cardiovascular system; filtering; in vivo signals; low-pass filter; mean fractal dimension; mean frequency; narrow band stochastic signals; self-affinities; self-similarities; time-varying random signal; Amplitude modulation; Band pass filters; Blood; Filtering; Fractals; Frequency; Low pass filters; Narrowband; Signal analysis; White noise;
Conference_Titel :
Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE
Print_ISBN :
0-7803-7211-5
DOI :
10.1109/IEMBS.2001.1020512
