{
  "ptid_time": "094_S_0711_2009-08-18",
  "img_path": "/data/qiuhui/data/adni/images/094_S_0711/2009-08-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 38,430 mm³, 18.3% below the reference mean. With a Z-score of -0.53 (29.8th percentile), this represents normal volume ; whole brain volume measures 928,147 mm³, 9.8% below the reference mean. With a Z-score of -1.29 (9.9th percentile), this represents mild atrophy. ",
  "text_data": "Age is 80.3 years. Gender is Male. Education: 18 years. MMSE: 30.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is within normal limits, but the whole brain volume shows mild atrophy (Z-score -1.29, 9.9th percentile). However, the MMSE score of 30 is perfect, and there is no APOE4 genetic risk factor.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy is present, but cognitive performance is intact)",
  "timestamp": "2025-07-26T10:13:42.577564"
}