The assessment of dementia primarily encompasses three aspects: The first aspect mainly involves relevant neurological scales, which can scientifically and effectively measure the cognitive functions of elderly patients. These scales include the MSE (Mini-Mental State Examination) and the MoCA (Montreal Cognitive Assessment). The second aspect of the assessment involves some imaging tests, mainly cranial MRI scans. Cranial MRI can determine if there is brain atrophy in the elderly and examine for any related lesions in the temporal lobes and hippocampi. The third major aspect involves the analysis of cerebrospinal fluid, assessing the levels of amyloid proteins, which also play an important role in the assessment of dementia. In summary, the assessment of dementia primarily involves evaluations using neurological scales, cranial MRI, and cerebrospinal fluid analysis.