CT dose considerations differ from radiography in what key way?

CT dose considerations differ from radiography in what key way?

• A. CT typically delivers lower doses than radiography; optimization is unnecessary.
• B. CT dose management relies solely on shielding and patient repositioning.
• C. CT doses are variable but always lower than radiography; no tracking needed.
• D. CT typically delivers higher doses; optimization uses scanner protocols, iterative reconstruction, shielding, justification, and dose tracking (CTDIvol, DLP).

Answer: (D)