{
  "ptid_time": "022_S_5004_2013-04-26",
  "img_path": "/data/qiuhui/data/adni/images/022_S_5004/2013-04-26/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 9,076 mm³, 13.1% above the reference mean. With a Z-score of 1.31 (90.4th percentile), this represents mild enlargement. ",
  "text_data": "Age is 65.1 years. Gender is Male. Education: 20 years. MMSE: 29.0. MoCA: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is mildly enlarged (13.1% above mean, Z-score 1.31), which is atypical for Alzheimer's but not diagnostic. Cognitive scores (MMSE 29, MoCA 25) are within normal range, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (hippocampal enlargement is unusual but cognitive performance is intact)",
  "timestamp": "2025-07-26T02:22:45.328803"
}