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Mountain View, CA
A 39-year-old female asked:

I had an abdominal ct-scan for unexplained fever. they actually did 2 scans - one with iodine contrast and one without. was it really necessary to do 2 scans, and hence double my radiation dose?

3 doctor answers6 doctors weighed in
Dr. Vicken Poochikian
Internal Medicine 42 years experience
It's helpful: Sometimes it's necessary to do with and without contrast to get more details and information about what's going on. Radiation exposure is minimum. It's essential to find out minor details to explain cause if unknown fever.
Dr. Dennis Jordanides
Internal Medicine 24 years experience
No: There was no reason to do two scans. Just one scan with contrast would have been sufficient. There are very few cases where the two scans would be needed simultaneously.
Dr. Andrew Hoffman
General Surgery 35 years experience
Don't worry about it: Scanning with and without contrast helps identify certain types of internal organs and can not be done without the contrast. Looking for certain things is masked by the contrast, so a scan without it is done first. The amount of radiation is probably far lower than what you would receive from spending a weeks vacation at the beach lying in the sun.

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Last updated Dec 31, 2014

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