Doctors frequently use a combination of brain imaging and cell analysis to diagnose Alzheimer’s disease. However, these methods can have drawbacks. Cell analysis, also known as a lumbar puncture or spinal tap, involves inserting a needle into the lower back to extract a sample of cerebrospinal fluid for testing. This procedure can be invasive and painful. MRI scans are less invasive, but they can be costly and may not be available in all areas. Both methods can be used to identify signs of progressive nerve cell loss and excessive accumulation of amyloid and tau proteins, which are indicative of Alzheimer’s disease.
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