X-rays and CT scans have revolutionized medicine. Doctors can look inside the body and diagnose diseases even before people feel ill. But medical imaging that uses radiation comes at a cost. A new ...

PET-CT is a modern functional imaging modality which is obtained by a combination of PET (Positron emission tomography) and CT (computerised tomography) in a single examination. This combination ...

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, ...

Add Yahoo as a preferred source to see more of our stories on Google. Do CT scans raise your risk of cancer? A new study weighs in. (Getty Images) Radiation is everywhere—in the air we breathe, the ...

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 ...

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Recently, a patient came to the hospital where I work with a persistent cough. Their doctor had ordered a CT scan—a type of imaging that creates detailed cross-sectional pictures of the body's ...