In a transverse section of the CT of the brain, a ring of the cranium is seen which is absent or not so prominent in MRI. What is this reason?

• A. The cranium is negated out while imaging
• B. Cranial ring is made of bones which do not have water, so it cannot give an MRI
• C. The EM waves received by MRI does not have sufficient magnetic strength to view the bones
• D. MRI images soft tissues so it does not image the cranium properly. Thus, the cranial ring is more prominent in CT than in MRI