Ｉｎｔｅｒｎｅｔ即国际互联网，它连接着世界上数千万台计算机主机，其浩瀚的信息资源和快速、方便灵活的交流方式对人们生活的各个方面包括放射医学产生着巨大的影响［１－３］。如何了解和开发利用其有用的资源，促进放射医学发展是我们面临的一个课题。１　Ｉｎｔｅｒｎｅ Internet is the Internet, which connects tens of millions of computer hosts in the world. Its vast information resources and fast, convenient and flexible communication have a tremendous impact on all aspects of human life, including radiology [1-3]. How to understand and exploit its useful resources to promote the development of radiology is a subject we are facing. 1 Interne