What does the m. r. i. do?

核磁共振到底是干嘛的？

When you fell out of bed this morning, you hit your temple, hard. The c. t. didn't catch it, but the m. r. i. did.

今天早晨你从床上摔下来的时候撞伤了额头，蛮严重的。CT没有看到，但磁共振看到了。

An M R I revealed a abnormality in her brain and the doctor who operated on it pulled out a live roundworm.

核磁共振检查显示她的大脑存在异常，进行手术的医生取出了一条活蛔虫。