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.

Preparation guidelines for a CT scan depend on the type of scan you’re having. If you’re having a bowel scan or a scan with contrast dye, you may need to adjust your diet. Preparation for a CT scan ...

If your doctor orders a CT scan, here is what you need to know: A computed tomography scan — also called a CT or CAT scan — is an imaging test that lets doctors see inside a person’s body. As a ...