Tracking blood flow and tissue motion using optical correlation

1993 ◽  
Author(s):  
Natalie Clark ◽  
Michael K. Giles ◽  
Sarah H. Harrison ◽  
Chris P. Hofer
Keyword(s):  
Blood Flow ◽  
Optical Correlation ◽  
Tissue Motion

An Advanced Filter Adaptive to Non-Stationary Clutter in Ultrasonic Color Flow Imaging

2011 ◽  
Vol 186 ◽  
pp. 141-145
Author(s):  
Cong Sheng Xie ◽  
Dong C. Liu
Keyword(s):  
Blood Flow ◽  
Adaptive Filter ◽  
Constant Velocity ◽  
Cutoff Frequency ◽  
Flow Imaging ◽  
Color Flow ◽  
Flow Estimation ◽  
Clutter Rejection ◽  
Color Flow Imaging ◽  
Tissue Motion

Traditional clutter rejection methods are based on the hypothesis that the clutter signal originates from stationary or moving tissue with a constant velocity, and they are not valid when there exists considerable acceleration of tissue motion. In this paper, we propose an advanced clutter filter adapted to accelerated tissue motion. It uses the instantaneous frequency to realize the DC remove, and uses the bandwidth of the clutter signal to choose the cutoff frequency of the wall filter, Simulation shows this advanced adaptive filter can efficiently attenuate the non-stationary clutter signals and improves the accuracy and the flexibility of the blood flow estimation.

Colour ultrasound imaging of blood flow and tissue motion.

1997 ◽  
Vol 70 (837) ◽  
pp. 878-890 ◽  
Author(s):  
P R Hoskins ◽  
W N McDicken
Keyword(s):  
Blood Flow ◽  
Ultrasound Imaging ◽  
Tissue Motion

scholarly journals Diffuse optical correlation tomography of cerebral blood flow during cortical spreading depression in rat brain

2006 ◽  
Vol 14 (3) ◽  
pp. 1125 ◽  
Author(s):  
Chao Zhou ◽  
Guoqiang Yu ◽  
Daisuke Furuya ◽  
Joel H. Greenberg ◽  
Arjun G. Yodh ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Rat Brain ◽  
Cortical Spreading Depression ◽  
Spreading Depression ◽  
Optical Correlation
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