Title :
Array signal processing for local arterial pulse wave velocity measurement using ultrasound
Author :
Hoctor, Ralph T. ; Dentinger, Aaron M. ; Thomenius, Kai E.
Author_Institution :
Imaging Technol. Organ., Gen. Electr.Global Res. Center, Niskayuna, NY
fDate :
5/1/2007 12:00:00 AM
Abstract :
A new signal processing approach to estimation of local arterial pulse wave velocity (PWV) in superficial arterial segments using long-axis ultrasound measurements is proposed. The method is designed to be resistant to estimation bias due to pulse wave reflections. It is evaluated using a laboratory test tank, and it appears to estimate local PWV with less bias than previously accepted methods, and with similar estimation variance to those methods
Keywords :
biomedical ultrasonics; blood vessels; medical signal processing; array signal processing; local arterial pulse wave velocity measurement; long-axis ultrasound measurements; pulse wave reflections; superficial arterial segments; Array signal processing; Arteries; Elasticity; Electrical resistance measurement; Pressure measurement; Pulse measurements; Reflection; Ultrasonic imaging; Ultrasonic variables measurement; Velocity measurement; Algorithms; Arteries; Blood Flow Velocity; Image Enhancement; Image Interpretation, Computer-Assisted; Pulsatile Flow; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Ultrasonography;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2007.347
