If technologists could not properly take a simple chest X-ray, how can they be expected to safely operate ct scanners or linear accelerators?
如果技术员不能准确进行一次简单的胸透检查，怎么能指望他们安全地操作CT扫描仪或线性加速器呢？
2
Participants were randomly assigned to receive three annual screenings with either the low-dose spiral CT or the standard chest X-ray.
参与者被随机地指定做一种每年一次共三次的影像学检查——低剂量螺旋CT或标准X射线胸透。
3
The NLST is the first trial with sufficient numbers of participants using a randomized design to enable the comparison of mortality differences between spiral CT and chest X-ray, Aberle said.