Tau proteins play an important role in Alzheimer's disease. Tau helps to stabilize neurons in the brain, but in Alzheimer's disease, tau proteins can misfold and tangle inside neurons. These tangles ...

PET scans examine the tissues of the body at a cellular level. Because these tests can measure metabolic activity, such as oxygen use, blood flow and the rate at which specific areas of the body are ...

PET and MRI scans may together distinguish a new type of dementia from Alzheimer’s disease (AD), a 2026 retrospective, ...

Preparing for a PET scan requires switching to a no-sugar diet the day before the scan. People with diabetes may have special instructions regarding medications. Doctors typically schedule PET scans ...

Medicare Part B covers outpatient PET scans when ordered by a doctor and considered medically necessary. PET scan costs can vary depending on whether you have the scan in a hospital as an inpatient, ...

Dr. Mathieu Spriet is an Associate Professor of Diagnostic Imaging at the School of Veterinary Medicine at the University of California-Davis. In 2015, the Grayson-Jockey Club Research Foundation ...

A new study from Brigham and Women's Hospital suggests that positron emission tomography (PET) brain scans could reveal hidden inflammation in patients with multiple sclerosis (MS) who are being ...

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 ...

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.

Q My wife is 59 years old. She had COVID-19 but recovered. A recent chest X-ray shows a white patch on her lung. She doesn’t have a cough or a fever, and her pulmonologist wants her to have a PET scan ...