Ultrasound pulse Doppler tomography

J. Schmolke, H. Emert
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引用次数: 7

Abstract

It is shown that pulse Doppler CT (computerized tomography) leads to more complete flow images than conventional flow imaging does; not only forward and reverse flow directions but also transverse directions are registered and imaged using a suitable color code. Pulse Doppler CT is proposed in a real-time two-array made and in a non-real-time but more sensitive scanning mode, which also has higher resolution. The reconstruction procedure is illustrated. Also described is an experimental setup that was applied to basic real-time imaging experiments in the two-array mode with artificial objects in a water tank. It is concluded that the method promises advantageous application in blood vessel architecture imaging and organ perfusion observation.<>
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超声脉冲多普勒断层扫描
结果表明,脉冲多普勒CT(计算机断层扫描)比传统的血流成像能获得更完整的血流图像;不仅正向和反向流动,而且横向流动也使用合适的颜色编码进行配准和成像。脉冲多普勒CT提出了一种实时双阵列和非实时但更灵敏的扫描方式,具有更高的分辨率。并举例说明了重建过程。还介绍了一种实验装置,该装置应用于水箱中人工物体的双阵列模式下的基本实时成像实验。结果表明,该方法在血管结构成像和器官灌注观察中具有良好的应用前景
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