How and Why a PET Scan Is Done and Possible Side Effects ...

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 ...

PET scans can detect amyloid plaques and tau tangles in the brain, which are often early signs of Alzheimer’s disease. But they’re not enough on their own to make a diagnosis. Alzheimer’s disease is ...

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 study by investigators at Mass General Brigham has found that a blood test of plasma phosphorylated tau 217 (pTau217), an ...

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 reveal amyloid plaques, which appear as warm colors such as red, yellow and orange. On the left is a patient with Alzheimer's disease, and on the right is a person with no detectable amyloid ...

Thanks to unprecedented collaboration among scientists around the globe, and to thousands of people who volunteered to lie in PET scanners over the past decade, two behemoth tau-PET studies now ...

A new study by investigators at Mass General Brigham has found that a blood test of plasma phosphorylated tau 217 (pTau217), an Alzheimer's disease biomarker, can predict the progression of amyloid ...