EXPLOSOSCAN - A PARALLEL PROCESSING TECHNIQUE FOR HIGH-SPEED ULTRASOUND IMAGING WITH LINEAR PHASED-ARRAYS
EXPLOSOSCAN - A PARALLEL PROCESSING TECHNIQUE FOR HIGH-SPEED ULTRASOUND IMAGING WITH LINEAR PHASED-ARRAYS
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DOI：
10.1121/1.390734
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发表时间：
1984-01-01
影响因子：
2.4
通讯作者：
VONRAMM, OT
中科院分区：
文献类型：
--
作者：
SHATTUCK, DP;WEINSHENKER, MD;VONRAMM, OT
医学超声成像设备中的数据采集速率受到声在组织中的传播速度的限制。典型地，在这样的机器中，图像行是每个发射脉冲顺序地产生1行的。实现了一种并行处理方案，该方案通过从每个单独的加宽发射脉冲同时采集4个B模式图像行，使数据采集速率增加4倍。更高的数据速率可用于增加图像帧速率以产生可在图像帧中平均的独立图像以减少噪声，或者以标准视频帧速率产生常规图像，同时减少患者暴露。可替代地，视场可以在不牺牲帧速率的情况下增加超过正常扫描的视场。这些优点是在测量分辨率几乎没有降低的情况下实现的。介绍了该装置的设计和性能。包括样本体内图像。
The data acquisition rate in medical ultrasonic imaging devices is limited by the acoustic propagation velocity in the tissues. Typically in such machines the image lines are produced sequentially 1 line per transmitted pulse. A parallel processing scheme was implemented which enables the data acquistion rate to increase by a factor of 4 through the simultaneous acquisition of 4 B-mode image lines from each individual broadened transmit pulse. The higher data rate can be used to increase the image frame rate to produce independent images that can be averaged in the image frame to reduce noise, or to produce a conventional image at standard video frame rates while reducing patient exposure. Alternatively, the field of view can be increased over that of a normal scan without sacrificing frame rate. These advantages are achieved with little reduction in the measured resolution. The design and performance of this device are described. A sample in vivo image is included.