The impact of nursing Interventions during PET/CT imaging in Alzheimer's patients on image quality and patient satisfaction will be assessed in 200 patients.

This study will analyze clinical data from 200 Alzheimer's disease (AD) patients who underwent PET imaging and were admitted to Sichuan Provincial People's Hospital over a period of six months. The control group will receive routine nursing intervention, while the observation group will receive a refined specialized nursing intervention. We will meticulously compare various performance aspects in both groups to assess the impact of refined specialized nursing intervention on patients' image quality and patient satisfaction.

Inclusion Criteria:

• Meet the criteria for diagnosing dementia as described in the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-R), Use the diagnostic criteria for AD from the National Institute of Neurology, Speech and Communication Disorders and Stroke - Alzheimer's Disease and Related Disorders (NINCDS-ADRDA) or the National Institute on Aging and Alzheimer's Disease Association (NIA-AA).

Exclusion Criteria:

• Patients with a history of stroke and focal neurological signs, and imaging findings consistent with small cerebral vascular disease (Fazekas score ≥2);
• The presence of other neurological disorders that can cause brain dysfunction (e.g., depression, brain tumors, Parkinson's disease, metabolic encephalopathy, encephalitis, multiple sclerosis, epilepsy, brain trauma, Normal facial pressure hydrocephalus);
• The presence of other systemic diseases that can cause cognitive impairment (such as liver insufficiency, renal insufficiency, thyroid dysfunction, severe anemia, folic acid or vitamin B12 deficiency, syphilis, HIV infection, alcohol and drug abuse, etc.);
• There is mental and neurological retardation.
• There are other diseases that are known to cause cognitive impairment.