我院自 2 0 0 1年 10月引进东芝Asteion/VR四排螺旋CT至今 ,一直使用比较稳定 ,扫描及重建速度快 ,图像清晰 ,界面简单易操作 ,满足了我们的使用要求。但是从今年 4月底机器开始出现栅栏状伪影及图像不重建并死机的故障 ,历经四个多月的反反复复 ,这中间不断进行测试检修才解决 Our hospital since October 2001 introduced Toshiba Asteion / VR four-row spiral CT so far, has been using a more stable, scanning and reconstruction speed, clear images, the interface is simple and easy to operate, to meet our requirements. However, from the end of April this year, the machine began to appear fence-like artifacts and the image is not reconstructed and crash failure, after more than four months of repeated, in the middle of continuous testing and maintenance before the solution