A CT scan of the chest involves 10 to 15 millisieverts (a measure of dose) versus 0.01 to 0.15 for a regular chest X-ray, 3 for a mammogram and a mere 0.005 for a dental X-ray.

Dear Abby is written by Abigail Van Buren, also known as Jeanne Phillips, and was founded by her mother, Pauline Phillips.

Discover a quick CT scan that reveals heart attack risk by detecting calcium buildup in arteries, offering a more accurate ...

To reduce unnecessary CT use, some hospitals have begun using blood-based biomarkers to guide triage in mild head trauma.

CT Scan Advisory On Monday the American Heart Association issued an advisory to doctors in its journal Circulation, urging the judicious use of CT scans for the diagnosis of cardiovascular disease.

CT scans also have supplanted exploratory surgery, Thomason said. "When my father was a general surgeon, they took so many patients to surgery (because) they had no idea what they had wrong with ...

"His doctor never advised him to have this simple scan that could have identified it early in its development and possibly ...

A new study suggests cancer risk from CT scans may have been overestimated. Dec. 1, 2010— -- Doctors have long known that CT scans can be a double-edged sword. Their diagnostic power is ...

Shri rapax had bigger claws and potentially a stronger bite than its Hollywood relative. But paleontologists still don’t know ...