Question

which of these is an advantage of an mri over a ct scan?
a. it produces better images of hard tissues.

b. it is safer.

c. it is faster.

d. it is less expensive.

Explanation:

• Option A: CT scans are better at imaging hard tissues (like bones) than MRIs, so A is incorrect.
• Option B: MRIs use magnetic fields and radio waves, while CT scans use ionizing radiation. Since ionizing radiation can be harmful, MRIs are safer, so B is correct.
• Option C: CT scans are generally faster than MRIs, so C is incorrect.
• Option D: MRIs are typically more expensive than CT scans, so D is incorrect.

Answer:

B. It is safer.