Title :
Coronary artery flow imaging with an intraluminal array
Author :
Crowe, J.R. ; Shapo, B.M. ; Stephens, Douglas ; Bleam, D. ; Eberle, M.J. ; Wu, C.C. ; Muller, D.W.M. ; Kovatch, J.A. ; Lederman, R.J. ; Donnell, M. O´
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
The rate of blood speckle decorrelation for scatterers moving through the imaging plane of an intravascular system can be used to estimate flow velocity. The authors have tested this hypothesis with an intraluminal array imaging system appropriate for coronary artery applications. A pig model was investigated with a 64 element, 20 MHz imaging system. Estimates of the relative blood speed made by measuring temporal decorrelation in a FIR filter bank were used to demonstrate real-time color flow imaging
Keywords :
acoustic arrays; angiocardiography; biomedical ultrasonics; blood flow measurement; speckle; ultrasonic arrays; 20 MHz; FIR filter bank; blood speckle decorrelation rate; coronary artery flow imaging; flow velocity estimation; imaging plane; intraluminal array; intravascular system; medical diagnostic imaging; pig model; real-time color flow imaging; relative blood speed; scatterers; Arteries; Blood flow; Decorrelation; Filter bank; Finite impulse response filter; Radio frequency; Scattering; Speckle; Testing; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 1996. Proceedings., 1996 IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-3615-1
DOI :
10.1109/ULTSYM.1996.584349
