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1. Alzheimer's disease: know the symptoms. Alzheimer's disease "is an illness of the brain that occurs primarily in older people where brain cells start to die," Devi says.
Meta-analysis of many reported studies suggests that SPECT with this tracer is about 74% sensitive at diagnosing Alzheimer's disease vs. 81% sensitivity for clinical exam (cognitive testing, etc.). More recent studies have shown the accuracy of SPECT in Alzheimer's diagnosis may be as high as 88%. [4]
The earliest warning signs of Alzheimer's disease include memory loss that impacts your daily functioning, vision and language issues, social withdrawal, and more.
The risks of CT scan radiation are especially important in patients undergoing recurrent CT scans within a short time span of one to five years. [ 157 ] [ 158 ] [ 159 ] Some experts note that CT scans are known to be "overused," and "there is distressingly little evidence of better health outcomes associated with the current high rate of scans."
Alzheimer's disease; high resolution MRI scans have shown the progression of cerebral atrophy in Alzheimer's disease [8] Cerebral palsy, in which lesions (damaged areas) may impair motor coordination; Senile dementia, fronto-temporal dementia, and vascular dementia; Pick's disease, causes progressive destruction of nerve cells in the brain
PET is probably most useful in early cases of certain dementias (with classic examples being Alzheimer's disease and Pick's disease) where the early damage is too diffuse and makes too little difference in brain volume and gross structure to change CT and standard MRI images enough to be able to reliably differentiate it from the "normal" range ...
Worried about Alzheimer's disease? And how can you tell Alzheimer's from normal memory loss? Here are 5 key pieces of information you need to know right now.
A 2023 study published in the journal Acta Neuropathologica examined tissue from the brain and retina of 86 individuals and compared samples from donors with normal cognitive function to samples ...
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