About 60-85% of adults will experience lower back pain at some point in their lives, and 15-45% of people experience chronic lower back pain − pain that lasts longer than three months. Lumbar ...

A older patient is guided into a CT scanner — an essential diagnostic tool whose life-saving power is now being weighed against growing concerns about long-term radiation exposure. Computed tomography ...

CT scans show detailed internal pictures and are usually essential in diagnosing life-threatening illnesses, such as internal bleeding, blood clots, or cancer. Although it is true that they expose ...