Get Virtual Care
For Businesses
About Us
A member asked:
I had a head computer assisted tomography scan and want to know if radiation used?
4 doctors weighed in across 2 answers
CT scan: Ct scans use x-rays to obtain an image. Mri scans use magnetism & radio waves to get an image. Modern ct scanners should minimize radiation exposure by operating at faster speeds than older ones but some facilities' protocols result in higher exposure. Avg head ct is 2-10 millisieverts (msv) which is equivalent to one's yearly exposure from background radiation.
Answered 7/31/2012
5.7k views
Yes: It is true that ionizing radiation (x-rays) are used but the dose for a single ct of the head is low and should not have any effects.
Answered 3/28/2014
5.7k views
Related Questions
A member asked:
I had a cranial surgery 4 years ago. Now I hit my head into the car door; no symptoms, only a mild pain in the skin on the frontal bone; Is it needed a cranial tomography ?
A doctor has provided 1 answer
A member asked:
I've been suffering from strong headaches located in the left temple. I already got a tomography and everything is normal. What could this be?
A doctor has provided 1 answer
A member asked:
What are the uses and?Side effects of oct (optical coherence tomography) test of eye?
A doctor has provided 1 answer
A member asked:
Eye field test and tomography showed that my eye nerves are healthy but scotomas are floating in my left eye(hardly noticeable)Will they get bigger?
A doctor has provided 1 answer
A member asked:
My right ear is ringing for three months.No hear loss.Mr and tomography results are clear except sinusite.Antibio can't help. Which department can help?
A doctor has provided 1 answer
People also searched for:
Doctor. I have a 2mm calcification in my brain. I found out about it when I had a computer tomography. I have been having a headache on the right side of my head. Does calcification in brain go away itself? Does vitamin K2 help?
What exposes the body to more: radiation bone scan or computed tomography?
Which procedure exposes patients to more radiation: a bone scan or a computed tomography?
Expert opinions? Which modality exposes patient generally to more radiation, bone scan or computed tomography?
What is a computered tomography angiography?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Download HealthTap
Video visit and message your doctor
