Several imaging procedures have been developed to help diagnose diseases in humans. Examples include X-ray imaging, ultrasonography, and computed tomography, also known as CT scans. CT scans have been ...

At 61 years old, Bill had started showing changes to his health—decreased appetite, weight loss, and abdominal bloating. But his bloodwork was normal, leaving the cause of his symptoms unknown. The ...

CT scans are a common test used by radiologists to examine what's happening inside the body. These scans use a small amount of radiation, raising concerns that they could cause cancer. Mark Supanich, ...

Forbes contributors publish independent expert analyses and insights. Paul Hsieh, M.D., covers healthcare economics, innovation, and policy. Radiologists have fielded numerous questions in recent ...