Title :
Blood speed imaging with an intraluminal array
Author :
Crowe, John R. ; Shapo, Benjamin M. ; Stephens, Douglas N. ; Bleam, David ; Eberle, Michael J. ; Céspedes, E. Ignacio ; Wu, Ching-Chen ; Muller, David W M ; Kovach, Julie A. ; Lederman, Robert J. ; O´Donnell, Matthew
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
fDate :
5/1/2000 12:00:00 AM
Abstract :
In applications in which Doppler processing is not possible, such as side-looking intravascular imaging systems, decorrelation methods can be used to estimate blood speed. Here, a method is presented measuring relative blood speed using an FIR filter bank to estimate temporal decorrelation rates. It can be implemented in a modern commercially available ultrasound imaging system with no additional hardware. Both simulations and experiments using an intraluminal scanner appropriate for coronary artery applications have tested the system. In this study, the FIR filter bank is contrasted with previous methods, and its utility is further demonstrated with real-time color flow images from a pig model.
Keywords :
FIR filters; acoustic correlation; acoustic filters; biomedical ultrasonics; blood flow measurement; cardiovascular system; decorrelation; ultrasonic arrays; FIR filter bank; blood speed; coronary artery; intraluminal scanner array; intravascular ultrasound imaging; pig model; real-time color flow image; temporal decorrelation; Acoustic imaging; Biomedical measurements; Blood flow; Decorrelation; Finite impulse response filter; Fluid flow measurement; Medical treatment; Ultrasonic imaging; Ultrasonic variables measurement; Velocity measurement;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
