A PET scan uses radioactive sugar as a tracer, so you’ll need to switch to a low carb, no-sugar diet 24 hours before the scan. This means avoiding bread, pasta, cereal, milk, and starchy vegetables, ...

Tau proteins play an important role in our normal brain function, mainly by helping to stabilize neurons in the brain. But in Alzheimer’s disease, tau proteins can misfold and tangle inside neurons.

A positron emission tomography (PET) scan is an imaging technique that uses small amounts of radioactive substances. Doctors may use PET scans in chemotherapy treatments for cancer. PET scans help ...

PET scans are a form of imaging scan that can take three-dimensional images of the inside of a person’s body. They can help a doctor detect and accurately stage someone’s liver cancer. Doctors might ...

A positron emission tomography (PET) scan is a diagnostic tool that examines body tissue functioning, such as blood flow, oxygen use, and sugar metabolism, to help doctors diagnose and treat disease.

PET scans can detect the decline in glucose metabolism associated with decreased cognitive function, particularly in the temporal and parietal lobes located on the sides and the back of the brain, the ...

A PET scan can help doctors spot cancer that has spread through the body. A doctor may request one during the melanoma diagnostic process if they suspect advanced melanoma cancer. A PET scan is an ...

Sayaka Blickenderfer is a medical and science editor and writer with more than 10 years of experience. She edits and prepares scientific manuscripts and grant proposals for submission. Jane Kim, MD, ...

DURHAM, N.C. – Among patients with mild or no cognitive impairment, brain scans using a new radioactive dye can detect early evidence of Alzheimer's disease that may predict future decline, according ...

This article was originally published in the 2025 Equine Research Horizons, a publication of Grayson-Jockey Club Research Foundation. Reprinted with permission.Dr. Mathieu Spriet is an Associate ...