if a five year old correctly answers questions that are meant for 10 year olds, the his/her/theirs mental ages is:

Answeras soon as the cord has stopped pulsating;

Unlike  ct scans, which use x-rays,  mri scans  use powerful magnetic fields and radio frequency pulses to produce detailed pictures of organs, soft tissues, bone and other internal body structures.  differences between  normal and abnormal tissue is often clearer on an  mri  image than a  ct.you can see more with a mri scan. for example on an mri you can see internal bleeding.