A scan that sees Alzheimer's tangles? trial puts tau tracer to the test

This trial tests whether a single injection of [18F]-APN-1607, a radioactive tracer that binds to tau protein, can produce PET images that match the actual tau buildup found in the brain after death. It includes healthy volunteers and people with mild cognitive impairment or Alzheimer's dementia, all aged 50 or older. The goal is to see if this imaging method can reliably detect Alzheimer's-related brain changes, which could lead to better diagnosis without needing an autopsy.