实时超声成象是一种很有用的临床诊断方法。目前多数工作在于用更复杂的电路来改进影象的质量。然而,二维成象系统在临床上是否能得到更为广泛的接受,不仅决定于影象质量的改进,而且也受到使用的简易性、体积和轻便性等因素的影响。本文报告了手持式实时超声成象扫描仪的技术说明。该仪器基于线阵列原理,具有体积小、易携带和使用电池工作等特点。由于线阵列方法固有的简易性和与电子集成技术相结合的可能性,使仪器实现了微型化。在扫描 Real-time ultrasound imaging is a useful clinical diagnostic method. Much of the work now is to improve the quality of the image with more complicated circuits. However, whether 2D imaging systems are more widely accepted in clinical settings depends not only on the improvement of image quality, but also on the ease of use, size and portability. This article reports the technical description of the handheld real-time ultrasound imaging scanner. The instrument is based on the principle of line array, with small size, easy to carry and use the battery and so on. The miniaturization of the instrument has been achieved due to the inherent simplicity of the line array approach and the potential for integration with electronic integration techniques. Scanning