EditorialPositron emission tomography imaging of the brain of an Alzheimer’s patient at Massachusetts General Hospital in Boston. (Tony Luong/The New York Times)
EditorialPositron emission tomography imaging of the brain of an Alzheimer’s patient at Massachusetts General Hospital in Boston. (Tony Luong/The New York Times)
EditorialPositron emission tomography imaging of the brain of an Alzheimer’s patient at Massachusetts General Hospital in Boston. (Tony Luong/The New York Times)
EditorialFormer NFL player Jonathan Martin is fitted with a special mask as he prepares to undergo a positron emission tomography, or PET, scan at Johns Hopkins University in Baltimore on March 23, 2022. (Jason Andrew/The New York Times)