HIGH-SPEED ULTRASOUND IMAGING

这项工作的总体目标是研究一种新的方法， 超声相控阵诊断成像 虽然主要面向 对于心脏病学的应用，该方法也可以找到应用 在超声诊断的其他领域。 所提出的方法是基于 对接收到的回波信息进行并行处理， 同时显示10条B超线。 以这种方式帧 可以达到每秒300个的速率。 这种高数据采集速率 提供了图像集成的可能性，以改善 解剖结构 对相同的断层摄影图像的整合 可以在不同扫描条件下获得目标，而不损害 动态事件的视场或时间分辨率。 除了传统的扇区扫描格式， 到三维和空间复合实时成像。 该第一 产生实时三维图像的尝试是基于 从同一换能器产生两个正交断层图像。 希望通过这些成像技术的发展和探索 超声诊断的准确性和特异性 检查可以得到改善，更可靠的临床评估可以 在更大的患者群体中获得。

The overall objective of this work is to investigate a new method of diagnostic ultrasound phased array imaging. Although primarily oriented towards applications in cardiology, this method may also find application in other areas of ultrasonic diagnosis. The proposed method is based on the parallel processing of received echo information to permit the simultaneous display of ten ultrasound B-mode lines. In this way frame rates of 300 per second can be achieved. This high data acquisition rate provides the possibility of image integration for improved visualization of anatomical structures. Integration of tomographic images of the same target under differing scan conditions can be obtained without compromising either the field of view or the temporal resolution of dynamic events. Aside from conventional sector scan formats, this technique will be applied to three-dimensional and spatial compound real-time imaging. This first attempt at producing real-time three dimensional images is based on the generation of two orthogonal tomographic images from the same transducer. It is hoped, that through the development and exploration of these imaging techniques the diagnostic accuracy and specificity of ultrasonic examinations may be improved and that more reliable clinical assessment can be obtained in a larger patient population.