A CT scan exposes your body to some radiation. That involves a small amount of risk, and it’s important to understand the issues. A CT scan uses what’s called “ionizing” radiation.

Cells in your body are always dividing and making new copies. When you have cancer, though, some cells start to divide way too fast. That's where radiation therapy can help. It uses high-energy ...

With EBRT, a large machine sends radiation waves to the site of cancer from outside the body. You can’t see the rays, and the apparatus doesn’t touch you but moves around you. The movement ...

Some of the effects that radiation has on a human body are shown below. Eyes High doses can cause cataracts. Thyroid Radioactive iodine can build up and cause cancer, particularly during growth.

has found that high-precision radiation therapy is safe for use in patients with cancer that has spread to more than 10 spots in the body. Published in the International Journal of Radiation ...

Increasingly, full-body computed tomography screening is being marketed to healthy people. In discussions of the pros and cons of this procedure, potential risks from radiation exposure frequently ...

Why is the radiation dose in CT higher than in conventional X rays (radiographs)? The highest dose is at the body surface where the beam enters the body. In a conventional X ray examination, the beam ...

This can lead to cancer. Radiation can also deposit large amounts of energy into the body, which can damage or destroy cells completely. Image caption, Coloured scanning electron micrograph (SEM ...