P3A-7 Real-Time High-Resolution 3D Imaging Method Using 2D Phased Arrays Based on Sparse Synthetic Focusing Technique
P3A-7 Real-Time High-Resolution 3D Imaging Method Using 2D Phased Arrays Based on Sparse Synthetic Focusing Technique
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P3A-7基于稀疏合成聚焦技术的2D相控阵实时高分辨率3D成像方法
DOI：
10.1109/ultsym.2006.510
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
T. Song
中科院分区：
文献类型：
--
作者：
Jungjun Kim;T. Song
作者最近提出了一种使用2D相控阵进行实时3D超声成像的方法，该方法分别在横向和纵向上采用双向动态聚焦和传统接收动态聚焦。该方法可通过横向稀疏合成聚焦技术减少发射-接收（T/R）事件的数量来提高体积率。在演示中，将证明通过采用横向稀疏合成聚焦技术，可以在不抬高栅瓣的情况下提高该方法的帧率（或体积率）。计算机仿真结果表明，该方法可以在横向转向角为 40 度时提供峰值栅瓣电平小于 -50dB 的高分辨率 3D 图像
A method for real-time 3D ultrasound imaging using 2D phased arrays has recently been proposed by the authors, which employs two-way dynamic focusing and conventional receive dynamic focusing in the transversal and longitudinal directions, respectively. This method can be used to improve volume rate by reducing the number of transmit-receive (T/R) events with sparse synthetic focusing technique in the transversal direction. In the presentation, it will be demonstrated that the frame rate (or volume rate) of this method can be increased without elevation of grating lobes by adopting sparse synthetic focusing technique in the transversal direction. Computer simulation results show that the proposed method can provide a high-resolution 3D image with peak grating lobe level smaller than -50dB up to steering angle of 40 degree along the transversal direction