Real time 3D ultrasound imaging of the brain
Real time 3D ultrasound imaging of the brain
复制标题
大脑实时 3D 超声成像
DOI：
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复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
S.W. Smith
中科院分区：
文献类型：
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作者：
N. Ivancevich;K. Chu;J. Dahl;E. Light;G. Trahey;F. Idriss;P. Wolf;E. Dixon;S.W. Smith
我们测试的可行性真实的时间三维超声成像在大脑中的2.5 MHz的二维阵列，使用体积模型1扫描仪。在人类受试者中，扫描同时产生经颅轴向、冠状和矢状图像平面以及大脑大体解剖结构的真实的时间体积渲染图像。在经颅绵羊模型中，我们获得了脑血管的真实的时间三维彩色血流多普勒扫描以及使用团注造影剂到颈内动脉的灌注图像。我们的长期目标包括使用2D阵列对颅骨进行相位畸变校正。相位畸变测量已从聚合物铸件的颞骨区域和固定的人顶骨。来自颅骨的严重畸变数据表明在真实的时间经颅超声检查中尚未实现的图像质量的显著潜在改善。使用多滞后最小二乘互相关方法，我们已经纠正了电子像差的3D扫描，导致对比度斑点比（CSR）和对比度的囊肿模型中的增加。
We tested the feasibility of real time 3D ultrasound imaging in the brain with a 2.5 MHz 2D array using a Volumetrics Model 1 scanner. In a human subject, the scans produced simultaneous transcranial axial, coronal and saggital image planes and real time volume rendered images of the gross anatomy of the brain. In a transcranial sheep model we obtained real time 3D color flow Doppler scans of cerebral vessels as well as perfusion images using bolus injection of contrast agents into the internal carotid artery. Our long term goal includes phase aberration correction of the skull using the 2D array. Phase aberration measurements have been made from both polymer castings of the temporal bone region and of a fixed human parietal bone. Severe aberration data from the skull bone indicates a significant potential improvement in image quality yet to be realized in real time transcranial sonography. Using the multi-lag least-squares cross-correlation method, we have corrected an electronically aberrated 3D scan, leading to an increase in contrast-to speckle ratio (CSR) and contrast in a cyst phantom.
使用到达时间的最小均方误差估计对超声脉冲焦点退化进行时移补偿。
DOI：
10.1121/1.408348
发表时间：
1994
期刊：
The Journal of the Acoustical Society of America
影响因子：
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作者：
Liu,DL;Waag,RC
通讯作者：
Waag,RC