(Columbia) April 24, 2003 - Alzheimer's
Disease can be as mysterious as it is
devastating, but one technology is helping
provide a detailed look at the condition. A new,
seven-second video image may reveal the future
of the disease.
Dr. Paul Thompson, a professor of neurology
at UCLA, says with the video, "You get a
physical picture of how the devastation of
Alzheimer's is spreading across the brain, which
parts of the brain are affected and how
fast."
The sequence is actually a composite of a
dozen patients who had MRIs over a
year-and-a-half. A super computer combined the
brain scans into a moving image. Thompson says
it shows where brain cells are dying, "So,
memory areas lose tissue first, and that makes
sense, 'cause memory is the first to go. Then
the emotional areas of the brain, the areas
involved in self-control, are the next to
go."
For people like Ray Averill, the new
technology could buy time. He's showing early
signs of what could be Alzheimer's, "Verbally,
when I want to talk, I will have difficulty
getting the right word out.. Though I know what
the word is, my mouth won't say the right
thing."
If Ray does have early Alzheimer's Disease,
the new technology could help him get the
treatment he'll need to slow its progression,
"They'll be able to make the change and say,
'Oh, this isn't gonna be able to work on him.
See what's happened here. Now, we'll try this
one.'"
Researchers say that may now be possible
thanks to the new images.
Alzheimer's kills off brain cells at a rate
of five to ten percent a year. As many as seven
million Americans have the disease.
by Dawn
Mercer
posted 12:13pm by Chris
Rees