{
  "ptid_time": "094_S_2367_2012-05-16",
  "img_path": "/data/qiuhui/data/adni/images/094_S_2367/2012-05-16/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 7,427 mm³, 1.7% below the reference mean. With a Z-score of -0.17 (43.2th percentile), this represents normal volume ; whole brain volume measures 1,221,440 mm³, 13.2% above the reference mean. With a Z-score of 1.71 (95.6th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 75.7 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Psychiatric; Cardiovascular; Respiratory; Dermatologic-Connective Tissue; Endocrine-Metabolic. MMSE: 27.0. MoCA: 22.0. Logical Memory: 7.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is within normal limits (Z-score -0.17), and whole brain volume is actually enlarged (Z-score 1.71), which is atypical for Alzheimer's. The MMSE (27/30) is normal, but the MoCA (22/30) suggests mild cognitive impairment (MCI). APOE4 carrier status increases Alzheimer's risk but is not diagnostic.  \n**Diagnosis:** MCI  \n**Confidence:** Medium (MoCA suggests impairment, but structural imaging does not strongly support neurodegeneration)",
  "timestamp": "2025-07-26T10:27:58.458482"
}