(CNN) — Researchers say there is now a new device that can help doctors detect memory loss early on, and maybe prevent the progression of Alzheimer's disease.

Scientists say they've developed a way to detect whether you're at risk of getting Alzheimer's, or what's known as mild cognitive impairment (MCI).

MCI is a transition stage between when the brain ages normally and when a person develops Alzheimer's disease.

More than 5 million Americans have Alzheimer's disease, and that number continues to grow.

“This is a very significant problem,” said Dr. David Wright from Emory University. “The population is aging, and it's only going to grow.”

Scientists use a device called DETECT. It employs virtual images and sounds in a helmet. A patient's memory and cognitive skills are challenged and their answers recorded through a controller.

Emory University researchers say the test is quick, portable and provides consistent data to track memory loss.

“The earlier the diagnosis, the earlier the treatment, the better quality of life and the longer they can live independently,” said Dr. Wright.

Although there is no known cure for Alzheimer's, many people can off-set the symptoms through brain exercises and medication.

Dr. Wright says if you catch and treat MCI early you can delay symptoms up to three years.

“When you have a family member with Alzheimer's disease, being able for them to be independent — and you can leave and go to work and not worry about them — for two months is important, much less three years,” he said.

Researchers are hoping to get the DETECT system into doctor offices as early as this fall.