A CT scan (also called a CAT scan) is a series of cross-sectional X-ray images of the body. Learn why a CT scan is performed and what to expect during one.

A CT scan accurately captures a dense structure, such as bone, but soft tissue is more difficult to see. A doctor will sometimes order a contrast CT scan , which uses a special dye to highlight ...

My scan shows I have thyroid nodules. Should I be worried? Published: April 25 ... Thyroid nodules are readily seen on common imaging tests such as an ultrasound or CT scans.

CT scans use radiation. Here’s what you need to know about your safety. ... Here are radiation doses for common procedures if you get a scan with contrast, and then one without contrast: ...