{
  "ptid_time": "041_S_4138_2012-10-10",
  "img_path": "/data/qiuhui/data/adni/images/041_S_4138/2012-10-10/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 4,328 mm³, 33.4% below the reference mean. With a Z-score of -2.67 (0.4th percentile), this represents significant atrophy; whole brain volume measures 917,625 mm³, 1.1% below the reference mean. With a Z-score of -0.14 (44.6th percentile), this represents normal volume . ",
  "text_data": "Age is 89.4 years. Gender is Female. Education: 14 years. MMSE: 24.0. MoCA: 21.0. Logical Memory: 0.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume shows significant atrophy (Z-score -2.67, 0.4th percentile), which is strongly associated with Alzheimer's pathology, while whole brain volume is normal. Cognitive scores (MMSE 24, MoCA 21) indicate mild impairment, but not severe enough for dementia. APOE4-negative status slightly reduces Alzheimer's risk but does not rule it out.  \nDiagnosis: **MCI** (Mild Cognitive Impairment)  \nConfidence: **High**",
  "timestamp": "2025-07-26T07:13:04.127035"
}