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A member asked:
Why doesn't alzeihmers brain degeneration show up on an mri?
4 doctors weighed in across 2 answers
MRI shows masses: MRI is designed to show only space-occupying lesions; Alzheimer's, unless in the advanced stages, results in brain changes, but does not alter the structure significantly enough to appear on MRI.
Answered 8/20/2014
3.8k views
Alzheimer MRI: When a person has Alzheimers disease for a long time, there may be accelerated atrophy (shrinking) of the brain, inconsistent with their age, which may show up on MRI. At earlier stages of Alzheimers, the changes that are occurring happen within cells of the brain, and these are too small to be seen in a picture of the brain. The MRI is best for finding stroke, MS or other diseases.
Answered 5/22/2016
3.8k views
Related Questions
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So i could have alzheimer's, but brain MRI missed it? I have major memory issues, confusion, feel drunk, sensation in head, cognitive problems, i'm 19
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I have headaches often. Doctor told me to do brain MRI. I forgot to tell doctor I have bilateral lattice degeneration. Is MRI safe for me and my eye?
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MRI: possible mild volume loss involving temporal lobes, says could be Alzheimer's or age-related. I'm only 45. How concerned should I be?
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How definitive is an MRI as a screening device to rule out dementia, either alzheimer's or other types?
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