{
  "ptid_time": "023_S_0030_2007-04-26",
  "img_path": "/data/qiuhui/data/adni/images/023_S_0030/2007-04-26/t1.nii.gz",
  "img_finding": "Image findings: whole brain volume measures 1,023,560 mm³, 10.3% above the reference mean. With a Z-score of 1.23 (89.1th percentile), this represents mild enlargement. ",
  "text_data": "Age is 81.5 years. Gender is Female. Education: 19 years. MMSE: 23.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The whole brain volume is mildly enlarged (10.3% above reference mean, Z-score 1.23), which is atypical for Alzheimer's. The MMSE score of 23 is borderline but not strongly indicative of dementia, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline MMSE but otherwise reassuring structural and genetic markers)",
  "timestamp": "2025-07-26T02:25:52.351204"
}