A brain scanner to diagnose Alzheimer's

They say test has entered final clinical trial stages. And, if results continue to prove successful, it may be rolled out by the end of 2012, the ‘Daily Mail’ reported.

Until now, the only way to diagnose Alzheimer’s was by ruling out other conditions such as cancer, depression or even a vitamin deficiency. Definitive confirmation came after death when brain samples containing high levels of beta amyloid plaques, the growths that characterise AD, are found.

But, now a new compound, called Flutemetamol, which highlights areas of the brain that are affected by the disease when scanned, is showing promising results in clinical trials, say the scientists.

The compound is injected into the arm and the patient exhibiting symptoms of Alzheimer’s disease undergoes a Positron Emission Tomography scan. If beta amyloid plaques are present in the brain, Flutemetamol makes them glow red, which confirms the patient has Alzheimer’s disease.

In the second phase of the Flutemetamol study, 65 patients suffering with the disease and other degenerative mental-health conditions with less than a year to live were given Flutemetamol to see what brain scans revealed.

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