{
  "ptid_time": "023_S_0855_2007-03-15",
  "img_path": "/data/qiuhui/data/adni/images/023_S_0855/2007-03-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,052 mm³, 37.7% above the reference mean. With a Z-score of 0.90 (81.7th percentile), this represents normal volume ; whole brain volume measures 1,017,940 mm³, 5.7% below the reference mean. With a Z-score of -0.74 (23.0th percentile), this represents normal volume . ",
  "text_data": "Age is 76.1 years. Gender is Male. Education: 12 years. MMSE: 26.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is slightly above the reference mean but still within normal range (Z-score 0.90), while whole brain volume is slightly below the reference mean but also within normal range (Z-score -0.74). The MMSE score of 26 is borderline but does not strongly indicate cognitive impairment, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T02:47:02.703018"
}