True, MRI avoids any worries about harmful radiation by using a magnetic field and radio signal instead of X-rays but that advantage is balanced by the fact that MRI images have less resolution than those from CT.

• 确实，通过用强磁场和电子信号来取代X射线，核磁共振成像可避免任何对有害辐射的担忧，但这一优点已被其清晰度不如计算机X射线断层摄影技术而抵消了。