Real-time system for angle-independent US of blood flow in two dimensions: initial results.
Real-time system for angle-independent US of blood flow in two dimensions: initial results.
复制标题
二维血流与角度无关的超声实时系统：初始结果。
DOI：
10.1148/radiology.186.1.8416575
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发表时间：
1993
期刊：
影响因子：
19.7
通讯作者：
Trahey,GE
中科院分区：
文献类型：
--
作者：
Bohs,LN;Friemel,BH;McDermott,BA;Trahey,GE
作者开发了一种超声波系统，可以实时跟踪移动血液的回声产生的散斑图案。与当前的彩色多普勒血流成像仪不同，该系统可以测量成像平面内任何方向的血流速度。作者使用该设备对人颈静脉中的血流进行成像，并将该图像与在类似情况下通过彩色多普勒血流成像获得的图像进行对比。作者证明该系统可以实时显示体内侧向血流。该系统的进一步开发，包括结合壁滤波器以增强微弱的血液回波和并行技术以减少数据采集时间，将允许对任何方向上每秒几米的速度进行临床成像，而不会出现混叠或依赖于多普勒角度。
The authors developed an ultrasound system that enables the speckle patterns produced by echoes from moving blood to be tracked in real time. Unlike current color Doppler flow imagers, this system allows the measurement of blood velocities in any direction within the imaging plane. The authors used this device to image flow in the human jugular vein and contrasted the image with one obtained under similar circumstances with color Doppler flow imaging. The authors demonstrated that this system can display in vivo lateral blood flow in real time. Further development of the system, including the incorporation of wall filters to enhance weak blood echoes and parallel techniques to reduce data acquisition time, will allow clinical imaging of flow with velocities of several meters per second in any direction without aliasing or dependence on the Doppler angle.