PET scans require dietary preparation, sometimes up to 24 hours before the test, so it's important to know which foods to eat ...

Positron emission tomography (PET) is a sophisticated medical imaging technique. It uses a radioactive tracer to pinpoint differences in tissues on the molecular level. A whole-body PET scan can ...

The following content is brought to you by Mashable partners. If you buy a product featured here, we may earn an affiliate commission or other compensation. Test results take seven to 10 days. Credit: ...