Question

which of these is an advantage of a ct scan over an mri?
a. it produces better images of soft tissue.
b. it uses safer compounds to produce contrast.
c. it is more helpful in determining whether surgery is necessary.
d. it uses no radiation.

Explanation:

CT - scans use iodine - based contrast agents which are generally considered safer than some MRI contrast agents that can have risks for patients with kidney problems. MRI is better for soft - tissue imaging. CT uses radiation. And both can be helpful in determining surgery need.

Answer:

B. It uses safer compounds to produce contrast.