{
  "ptid_time": "027_S_5109_2014-04-25",
  "img_path": "/data/qiuhui/data/adni/images/027_S_5109/2014-04-25/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 6,813 mm³, 9.9% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume . ",
  "text_data": "Age is 79.4 years. Gender is Male. Education: 14 years. MMSE: 27.0. MoCA: 22.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is slightly below the reference mean but still within the normal range (Z-score -0.96). Cognitive scores (MMSE 27, MoCA 22) suggest mild cognitive impairment (MCI), particularly given the MoCA score below the typical cutoff of 26. The absence of APOE4 reduces genetic risk but does not rule out MCI.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T04:08:21.159618"
}