{
  "ptid_time": "094_S_4649_2012-12-18",
  "img_path": "/data/qiuhui/data/adni/images/094_S_4649/2012-12-18/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 8,992 mm³, 12.0% above the reference mean. With a Z-score of 1.20 (88.5th percentile), this represents mild enlargement. ",
  "text_data": "Age is 65.9 years. Gender is Male. Education: 18 years. MMSE: 28.0. MoCA: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is mildly enlarged (12% above the mean, Z-score 1.20), which is atypical for Alzheimer's disease (AD) where atrophy is expected. Cognitive scores (MMSE 28, MoCA 25) are within normal limits, and the absence of APOE4 further reduces AD risk.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T10:33:20.732675"
}