A PET scan — or positron emission tomography scan — is an imaging tool that lets doctors see how well your tissues and organs are working. It’s often used to diagnose and stage various cancers.

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 scans may serve as both a diagnostic and prognostic tool in giant cell arteritis (GCA), according to a new study. In over 100 patients with GCA who underwent 18 F-fluorodeoxyglucose (FDG) PET ...

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

Dear Doctors: 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 ...

Karin Rexroad peeks through the bore of the PET-CT scanner at LMH Health. Positron emission tomography, or PET, scans have long been used to diagnose cancer and determine how far it has progressed.

Can a blood test predict Alzheimer’s? New research shows the pTau217 biomarker detects amyloid accumulation and cognitive ...

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 ...

A research group at Uppsala University has demonstrated that a new method for PET imaging of Alzheimer's disease is effective ...

A blood test of plasma phosphorylated tau 217 (pTau217), an Alzheimer's disease biomarker, predicted a faster buildup of ...

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 ...