中文摘要：

本文利用GPU通用计算技术实现了三维CT数据仿真,这与利用CPU三维CT数据仿真相比效率大大提升,仿真256＊ 256大小的投影数据,效率大约提高10倍.数据越复杂效率对比越明显,在数据仿真方面有较高的应用价值.

英文摘要：

This article introduces a new method that using GPU computing technology to realize the simulation of 3D CT Data. Compared with the old method which use of CPU to realize the simulation of 3D CT Data, the efficiency has been greatly enhanced. The test efficiency of the projection data simulation of 256 ＊ 256 size can be increased by about 10 times.