A member asked:

What is the difference between a cta of the brain/neck with contrast vs a mra?

A doctor has provided 1 answer
Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

One is done by CT technique (radiation exposure) which requires intravenous contrast and the other is by MR technique (no radiation). I think CT images are probably better.

Answered 12/3/2022

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