Dy. Fei et al., ANGLE INDEPENDENT DOPPLER COLOR IMAGING - DETERMINATION OF ACCURACY AND A METHOD OF DISPLAY, Ultrasound in medicine & biology, 20(2), 1994, pp. 147-155
Citations number
17
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging",Acoustics
A multiple beam technique was utilized to obtain angle independent Dop
pler color images (AIDCI) using an ultrasonic scanner with a linear tr
ansducer. A quantitative study using steady flow models has been perfo
rmed to evaluate the accuracy of this method in velocity measurements.
The results show that the velocity amplitudes measured with this meth
od correlated with those calculated from the measured flow rates (r =
0.95-0.98). The flow angles obtained with this method also correlated
with those calculated from the coordinates of the tube image (r = 0.93
-0.96). To improve the interpretation of the angle independent results
, a method for visualizing two-dimensional flow fields is presented an
d compared with two existing methods.