“Some experts fear PET scans offer few benefits, at substantial costs. “There are lots of incentives, including financial incentives, for doing more testing and interventions,” said Dr. Kenneth Langa, a researcher at the University of Michigan and author of a recent article in JAMA Internal Medicine about diagnosis of early Alzheimer’s disease. “My hope is we’ll think hard about the unintended downsides.”Langa and Burke’s paper in JAMA Internal Medicine on the risk of overdiagnosis of Alzheimer disease is cited.

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