Key points from article :
Scientists are testing an artificial-intelligence system thought to be capable of diagnosing dementia after a single brain scan.
It may predict whether the condition will remain stable for many years, slowly deteriorate or need immediate treatment.
Currently, it can take several scans and tests to diagnose dementia.
"If we intervene early, the treatments can kick in early and slow down the disease progression," - Zoe Kourtzi, Professor at Cambridge University.
The system compares brain scans of those worried they might have dementia with those of dementia patients.
Algorithm can identify patterns in the scans even expert neurologists cannot see.
In pre-clinical tests, it has been able to diagnose dementia, years before symptoms develop.
The trial, at Addenbrooke's Hospital and other memory clinics, will test it in a clinical setting, alongside conventional ways.
Research by Cambridge University.