Title :
Lumen enhancement and flow estimation by temporal correlation of radio frequency intravascular ultrasound
Author :
Li, W. ; van der Steen, A.F.W. ; Lancee, C.T. ; Gussenhoven, E.J. ; Bom, N.
Author_Institution :
Thoraxcentre, Erasmus Univ., Rotterdam, Netherlands
fDate :
31 Oct-3 Nov 1996
Abstract :
This study was designed to investigate the time-varying characteristics of blood scattering on high frequency intravascular ultrasound in vivo from pig experiments. Results show that blood scattering signals de-correlate significantly faster than signals received from arterial tissues. A correlation method based on this characteristic has been developed to suppress the blood echo intensity. Preliminary investigation also indicates that flow information can be extracted from the relationship between the temporal correlation and the flow velocity
Keywords :
acoustic correlation; biomedical ultrasonics; blood flow measurement; image enhancement; image sampling; image sequences; medical image processing; HF ultrasound in vivo; M-mode image; RF intravascular ultrasound; blood echo intensity; blood flow estimation; blood scattering; correlation method; iliac artery; image enhancement; image processing; lumen enhancement; pig experiments; temporal correlation; time-varying characteristics; Blood flow; Displays; Frequency estimation; Image processing; Particle scattering; RF signals; Radio frequency; Sequences; Ultrasonic imaging; Ultrasonic variables measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.652015
