Dr. Gary Small answers the question: 'MRI, PET Scan for Alzheimer's Diagnosis?' May 4, 2009 -- Question: When are imaging diagnostics, such as an MRI or PET scan, used to determine whether I have ...

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 team of researchers at the USC Mark and Mary Stevens Neuroimaging and Informatics Institute (Stevens INI) at the Keck School of Medicine of USC has identified important differences in how early ...

In particular, brain imaging for early AD detection is a highly active field of research. Brain positron emission tomography (PET) scans produce detailed three-dimensional images of the inside of the ...

Researchers use AI and postmortem tissue to reveal that tau PET scans are often influenced by iron and neuroinflammation rather than tau tangles alone.

NEW ORLEANS (June 23, 2025)—A novel PET imaging approach has revealed distinct patterns of brain inflammation in patients with progressive apraxia of speech (PAOS), a rare neurodegenerative disorder ...

Biologically speaking, there is no organ as vital or complex as the brain. And yet, the brain still remains somewhat a of a mystery-there’s a lot that even experts don’t know. Another troubling fact ...

PET scans can light up tumors in the body and help doctors determine if they are cancerous or benign (noncancerous). The results of a PET scan help guide medical decisions. A PET scan is a type of ...

Major depressive disorder (MDD) is one of the leading causes of disability worldwide, and approximately 30% of patients develop treatment-resistant depression (TRD), a condition that does not respond ...

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 ...