DEAR MAYO CLINIC: I’m scheduled for a CT scan, and I’ve never had one before. What does a CT scan do, what will it be like and is it safe? ANSWER: Co mputer tomography (CT) was invented more than 50 ...

Medical imaging scans that create detailed images of the body's internal structures are widely used in medicine. Doctors need them to detect and manage certain types of cancer, assess the extent of ...

A heart CT scan uses X-rays to create an image of the heart and blood vessels. Healthcare professionals may also refer to it as cardiac CT angiography. A CT scan is a noninvasive imaging procedure.

CT scans offer one way to learn more about the location, size, and shape of a brain aneurysm. A brain aneurysm is a weak or very thin spot on an artery in the brain that bulges out and fills with ...

A low-dose computed tomography (low-dose CT) scan is a test that healthcare professionals use to screen for lung cancer. It works similarly to a regular-dose CT scan but emits much less radiation. The ...

Computed tomography (CT or CAT) scans help doctors detect everything from cancer to kidney stones. But some physicians are raising concerns about the safety of such procedures — most notably, an ...

Forbes contributors publish independent expert analyses and insights. Dr. Omer Awan is a practicing physician who covers public health. Lung Cancer, Scan, Essay Can Be Used Only To Illustrate Cancer, ...

They can be life-saving but radiation from the scans also contributes to cancer risk. The authors of a new study estimate overuse of CT scans is... CT scans diagnose afflictions from tumors to kidney ...

About 40% of cancers among Americans can be attributed to potentially modifiable factors such as smoking, drinking, obesity, and physical inactivity. If a widely reported study from earlier this year ...