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.

In a small study, researchers at the National Institutes of Health have found that positron emission tomography (PET) scans of the heart may identify people who will go on to develop Parkinson's ...

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 ...

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 ...

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, ...

One of the primary tools that oncologists use to stage cancers is the PET (positron emission tomography) scan, an imaging test that uses a small amount of radioactive sugar to detect metabolically ...

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 ...

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 ...

Positron emission tomography (PET) scans can detect cancer earlier than other imaging tests by showing areas that use a lot of glucose. However, false-positive results can happen due to infections, ...