{
  "ptid_time": "127_S_0684_2007-08-20",
  "img_path": "/data/qiuhui/data/adni/images/127_S_0684/2007-08-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,863 mm³, 57.7% below the reference mean. With a Z-score of -1.32 (9.3th percentile), this represents mild atrophy; whole brain volume measures 1,006,610 mm³, 3.3% above the reference mean. With a Z-score of 0.41 (66.0th percentile), this represents normal volume . ",
  "text_data": "Age is 78.4 years. Gender is Female. Education: 20 years. MMSE: 29.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows mild atrophy (Z-score -1.32), but whole brain volume is normal (Z-score 0.41). MMSE score of 29 is within the normal range, and the absence of APOE4 reduces genetic risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy is present but not strongly indicative of cognitive decline given other normal markers)",
  "timestamp": "2025-07-26T13:02:41.508265"
}