Articles on CT scans

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Smoking is the biggest cause of preventable death in the U.S. A test for long-time smokers might be able to detect lung cancer earlier, thereby saving lives. Lightspring/Shutterstock.com

The test that could save the life of a long-time smoker you know

Low-dose CT scans can detect lung cancer in smokers and former smokers at an early and sometimes treatable stage. Why are so few smokers and former smokers getting them?
X-rays are like light rays, but they can pass through more stuff. Marcella Cheng/The Conversation

Curious Kids: How do x-rays see inside you?

X-rays are like light rays, but they can pass through more stuff. Some of the x-ray's energy is blocked by bone, which is why you can see bones so clearly on x-ray scans.
A study found children are at greater risk of developing later cancers from radiation from CT scans. from www.shutterstock.com.au

Weighing the risks and benefits of CT scans in childhood

In a recent study of almost 11 million young Australians, we showed those exposed to a CT scan before the age of 20 had a small increase in cancer risk in the years after exposure.

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