CT scans could cause cancer!

CT Scan

 According to the web page medterms.com we can define CT scan as: "Pictures of structures within the body created by a computer that takes the data from multiple X-ray images and turns them into pictures on a screen. CT stands for computerized tomography". 
CT scan is popular because it allows doctors to detect everything in the human body. But this scan is also dangerous: the clearer the image obtained, the more radiation emitted.

CT scan of brain

In the article "Computed Tomography — An Increasing Source of Radiation Exposure" written by David J. Brenner and published in The New England Journal of Medicine, Dr. Brenner claims CT could cause skin cancer due to the higher level of radiation emitted. This radiation is higher than the one emitted by the X-rays since more images are needed to produce a 3-D picture. 

Dr. Brenner argues that people are being irradiated unnecessarily and he posits that the "most effective way to reduce the population dose from CT is simply to decrease the number of CT studies that are prescribed". 

The following video explains this topic in detail:

Long-term studies of CT scans and cancer are still under way, but doctors already know that cancer is inevitable due to the high doses of radiation. 

If doctors know about the dangers of CT scans, why are they still recommend them? Why they don't give you the option of a lower dose of radiation? If a doctor recommends a CT scan for you, would you do it? Would you take the risk?