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中文摘要：
由于声成像技术具有对材料内部力学特性进行成像检测的特点,它已成为医学超声中的重要研究领域。为了提高声成像的空间分辨力,近年来,又发展了光声成像,扫描电子声显微术和扫描探针声显微术等新的近场成像技术。结合同济大学声学研究所部分研究结果,对这些近场成像技术在医学超声中的应用作了简单介绍。
英文摘要：
The distribution of mechanical properties on subsurface of materials can be obtained with acoustic imaging technique, and so it has been an important research field in ultrasound medicine. In order to increase the spatial resolution of acoustic imaging, some near field imaging techniques, such as photoacoustic imaging, scanning electron acoustic microscopy （SEAM） and scanning probe acoustic microscopy （SPAM）, have been developed recently. In this paper the applications of the near field acoustic imaging techniques in ultrasound medicine are introduced briefly with some experimental results.
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