Gardiner W M, Fox M D
Department of Electrical and Systems Engineering, University of Connecticut, Storrs 06269-3157.
Radiology. 1989 Sep;172(3):866-8. doi: 10.1148/radiology.172.3.2672097.
Reflections obtained from moving red blood cells on an ultrasound (US) scan of the abdominal aorta were enhanced with real-time Boolean operations on sequential frames of the image, as well as with frame subtraction and motion-detection processing. The Boolean operations used were the logical AND, OR, and Exclusive OR (XOR). Through the manipulation of output color lookup tables, the pixels within the flow field were given color representations. The resulting color-flow information can then be superimposed over the gray-scale image from the US imager to create color-flow imaging without the use of traditional Doppler US technology.
在腹主动脉超声（US）扫描中，通过对图像序列帧进行实时布尔运算、帧减法和运动检测处理，增强了从移动红细胞获得的反射信号。所使用的布尔运算是逻辑与、或和异或（XOR）。通过操纵输出颜色查找表，对流场中的像素进行颜色表示。然后，可以将得到的彩色血流信息叠加在美国成像仪的灰度图像上，从而无需使用传统的多普勒超声技术即可创建彩色血流成像。
