PET Scans Useful For Some Cancer Treatment, But How Do Patients Fare?

Positron emission tomography or PET scans can help clinicians diagnose and treat some cancers, but it is not clear yet whether the imaging technology helps people with cancer live longer and healthier lives, according to a comprehensive review by the U.K. National Health Service.

PET scans are one of the latest tools used to detect and determine a cancer's activity in the body. PET is generally more accurate than other imaging technologies such as computerized tomography (CT) or magnetic resonance imaging (MRI) scans. Using tiny radioactive elements, a PET scan can zero in on the distinctive biochemical fingerprints that distinguish cancerous cells from normal tissue.


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