{
  "ptid_time": "018_S_4313_2015-11-18",
  "img_path": "/data/qiuhui/data/adni/images/018_S_4313/2015-11-18/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 8,338 mm³, 28.4% above the reference mean. With a Z-score of 2.27 (98.9th percentile), this represents significant enlargement. ",
  "text_data": "Age is 81.0 years. Gender is Female. Education: 18 years. MMSE: 27.0. MoCA: 25.0. Logical Memory: 12.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is significantly enlarged (28.4% above mean, Z-score 2.27), which is unusual for Alzheimer's disease (typically associated with atrophy). Cognitive scores (MMSE 27, MoCA 25) are within normal limits for age, and amyloid PET (AV45) is normal. APOE4 carrier status alone does not confirm pathology.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T00:56:46.171507"
}