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医学ｘ－射线计算机层析成像的巨大成功，促进了非医学领域各种射线或波动ＣＴ的研究．本文是中国ＣＴ、ＭＲＩ和个人计算机网络方面的理论及应用情况的综述．ＣＴ是借助计算机网络和层析成像方法积分某类几何物理场的反问题．任一目标的数值图像可以根据目标或物体的投影进行重建．文中讨论了波动方程反问题和广义ＣＴ的关系．基于各种不同的单个目标二维和三维重建方法和结果，提出了通过多功能通讯终端适时在任一二维显示屏幕上快速分析的ＣＴ有限元法．
The tremendous success of medical x-ray computed tomography has facilitated the study of various radiations or undulatory CT in non-medical fields. This article is a review of the theories and applications of CT, MRI and personal computer networks in China. CT is the inverse problem of integrating some kind of geometrical physics field by means of computer network and tomography. The numerical image of any target can be reconstructed based on the projection of the target or object. In this paper, the relationship between the inverse problem of wave equation and generalized CT is discussed. Based on different methods and results of two-dimensional and three-dimensional reconstruction of a single target, a CT finite element method for rapid analysis on any two-dimensional display screen through a multi-functional communication terminal is proposed.