{
  "ptid_time": "052_S_4959_2014-03-18",
  "img_path": "/data/qiuhui/data/adni/images/052_S_4959/2014-03-18/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 6,892 mm³, 8.8% below the reference mean. With a Z-score of -0.86 (19.5th percentile), this represents normal volume . ",
  "text_data": "Age is 78.5 years. Gender is Male. Education: 20 years. MMSE: 26.0. MoCA: 23.0. Logical Memory: 4.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is slightly below the reference mean but still within the normal range (Z-score -0.86). Cognitive scores (MMSE 26, MoCA 23) are borderline but do not clearly indicate significant impairment. APOE4 carrier status increases risk but is not diagnostic.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline cognitive scores and APOE4 status, but no clear impairment)",
  "timestamp": "2025-07-26T07:52:44.158376"
}