The novel method described in this publication shows the aggregation of pathologic forms of tau, which can be found in Alzheimer’s disease patients, but also other neurodegenerative diseases. Swedish researchers at Lund University, together with colleagues in South Korea, the United States, and the Netherlands, have now been able to distinguish Alzheimer’s disease from other neurodegenerative diseases using information about the distribution of tau in the respective diseases derived from positron emission tomography (PET). The study showed that up to 95 percent of all Alzheimer’s disease cases were diagnosed correctly by tau PET. The method also showed greater diagnostic accuracy than established magnetic resonance imaging (MRI) measurements, and fewer false positive results than beta-amyloid PET – two methods used clinically today.
The study involved data from over 700 individuals recruited from memory clinics in three countries. These included patients with Alzheimer’s disease, a group of patients with other neurodegenerative diseases, individuals with mild cognitive impairment who had not yet developed dementia, and a group of healthy controls.
If PET tracers for imaging tau are approved for clinical use, they can potentially be of great use supporting the clinical diagnosis of Alzheimer’s disease.
Link to the article in JAMA>>