超声诊断仪的基本原理及新技术的应用

随着当今电子技术和计算机技术的发展，超声成像技术也有了很大的进步，具有新功能的超声成像设备层出不穷。超声成像的新技术主要有；微电子制造技术提高了探头阵元密度，增加响应频宽；计算机PC平台能够提供快速灵活稳定的开发应用系统；全数字化成像系统的推出使超声诊断仪更加稳定，图像更加清晰；多普勒成像功能提供了更多关于血流的信息；另外，新一代超声造影剂的应用对提高成像质量起到了重要的作用。采用了新技术的超声诊断仪为临床提供了更加丰富的诊断信息，为疾病的早期诊断创造了有利条件。

Principle of acoustic imaging systems and latest technologies in clinic

Acoustic imaging systems have been promoted quickly along with the development of the electronical and computer technologies. Many kinds of ultrasonic imaging systems with new functions have been designed and used in the hospitals. The main new technology adopted in the systems is that micro - electronical technology has reduced the size of the sensor and increased the range of the frequency response. The computer system can provides flexible, steady and fast developing system. The usage of the digital imaging system promotes the resolution and steadiness of the imaging system. The functions of the Doppler imaging system provides us more messages about the blood flow. A new generation of contrast agents takes an important rule in improving the quality of magines. The new acoustic imagining system with developed technologies can provide more messages for the clinical diagnoses, that creates better conditions for the doctors to diagnose and treat in the early period of a disease come on.