They also use aging-brain software to collect data on symptoms, track the stress level of family members and monitor how well patients' goals and needs are being met.

WSJ: New Push For Early Testing, Treatment For Dementia

"It is likely to play an important role in learning both how to diagnose and treat the disease, but it's still an open question at this point for asymptomatic people, " said Dr. Park, a behavioral and brain-sciences professor who uses Amyvid in her research on aging of healthy older adults.

WSJ: FDA Approves Alzheimer's Test Developed by Eli Lilly

Dr. Boustani, who is also associate director of the Healthy Aging Brain Center, says he is working with health-care systems in other states to duplicate the program, with an aim to affordably scale up the model to a national level.

WSJ: New Push For Early Testing, Treatment For Dementia

In 2008, following the pilot, Wishard Health Services, affiliated with Indiana University, opened the Healthy Aging Brain Center, where patients can receive a full diagnostic work-up, including neurological exams and brain scans.

WSJ: New Push For Early Testing, Treatment For Dementia