{
  "ptid_time": "035_S_0048_2009-01-15",
  "img_path": "/data/qiuhui/data/adni/images/035_S_0048/2009-01-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 25,323 mm³, 46.1% below the reference mean. With a Z-score of -1.34 (9.0th percentile), this represents mild atrophy; whole brain volume measures 999,654 mm³, 2.9% below the reference mean. With a Z-score of -0.38 (35.4th percentile), this represents normal volume . ",
  "text_data": "Age is 81.3 years. Gender is Male. Education: 14 years. MMSE: 27.0. Logical Memory: 8.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume shows mild atrophy (Z-score -1.34, 9th percentile), while whole brain volume is within normal limits (Z-score -0.38, 35th percentile). The MMSE score of 27 is near-normal, but the presence of two APOE4 alleles increases Alzheimer's risk.  \n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to borderline imaging findings and high genetic risk, but preserved MMSE)",
  "timestamp": "2025-07-26T05:42:55.954615"
}