FDA Approves Alzheimer Scan

The Food and Drug Administration approved a new test for Alzheimer’s disease Friday that experts say may change the way doctors diagnose and treat memory impairment. The system developed by Eli Lilly & Co. detects the presence of proteins in the brain that have been linked to the disease by using a radioactive chemical that marks them. The test can be used to determine whether or not someone has Alzheimer’s only after a patient reports trouble remembering things, however. The presence of these proteins used to be detectable only through an autopsy.