Abstract
Imaging of misfolded proteins implicated in neurodegenerative disorders using positron emission tomography (PET) imaging has revolutionized dementia research. In this viewpoint, the development of radiotracers for tau PET is highlighted. We draw attention to key innovations that were essential to development of radiotracers for imaging tau, from early imaging agents, through the structure-activity relationship (SAR) studies required to minimize off-target binding of the newer probes in use today. We also highlight development of Tauvid, the first tau PET radiotracer approved by the US FDA for tau imaging in adult patients with cognitive impairment who are being evaluated for Alzheimer's disease.
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