Medically reviewed by Nicholas R. Metrus, MD The posterior communicating artery (PCOM) is a part of a group of arteries in ...

These are the main blood vessels that bring blood to the brain. When plaque forms in these arteries, the arteries can be­come narrow, called carotid artery ... ray called a CT scan.

A single chest CT scan delivers approximately 70 ... identify life-threatening conditions like brain hemorrhages, aortic dissections, or internal injuries following accidents.