2 brain ct and few X rays this year.Is that to much?

[ivi210]

So I had 2 ct scan because I had a little TIA (more little brain attacks? and I had 1 lung x ray and neck and chest x ray. I am just wondering did I got 2 much radiation for this year?
Thank you!

[Ger57]

There is no safe maximum to the dose/year. Less is always better. With more radiation your change getting cancer increases (a very little bit).

Everyone gets an amount of natural background radiation of about 3mSv per year.
A chest X-ray is about 0,1mSv, a brain CT can be 2mSv.
So you got 3+2+2+0,1=7,1mSv over the last year.

According to calculation programs, the additional risk of getting cancer from the examinations is about 0,04%. So 1 person in 2500 will develop cancer during the remainder of their life from examinations you had.

Of course you had the examinations for a good reason. Therefore you may consider that the necessity and benefits from the examinations outweigh the negative effects.

Hope this answer helps you.

[ivi210]

Thank you for your answer very much.