{
  "ptid_time": "037_S_0303_2009-06-05",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0303/2009-06-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,276 mm³, 22.8% below the reference mean. With a Z-score of -0.66 (25.3th percentile), this represents normal volume ; whole brain volume measures 927,353 mm³, 9.9% below the reference mean. With a Z-score of -1.30 (9.7th percentile), this represents mild atrophy. ",
  "text_data": "Age is 87.2 years. Gender is Male. Education: 16 years. MMSE: 29.0. Logical Memory: 18.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is within normal limits, but the whole brain volume shows mild atrophy (Z-score -1.30, 9.7th percentile). Despite this, the MMSE score of 29 is in the normal range, and the presence of one APOE4 allele does not strongly indicate dementia at this stage.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy is present, but cognitive performance remains intact)",
  "timestamp": "2025-07-26T06:25:42.539149"
}