{
  "ptid_time": "021_S_0984_2006-10-23",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0984/2006-10-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 77,711 mm³, 101.8% above the reference mean. With a Z-score of 2.44 (99.3th percentile), this represents significant enlargement; whole brain volume measures 1,125,990 mm³, 4.3% above the reference mean. With a Z-score of 0.56 (71.2th percentile), this represents normal volume . ",
  "text_data": "Age is 76.6 years. Gender is Male. Education: 14 years. MMSE: 30.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. Biomarker levels: Total tau: 322.60 pg/mL (mild elevated); Phosphorylated tau: 36.02 pg/mL (moderate elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is significantly enlarged (Z-score 2.44, 99.3th percentile), suggesting atrophy, while whole brain volume is normal. Elevated T-tau and P-tau indicate neurodegeneration, but the MMSE score of 30 is intact.  \n**Diagnosis:** **MCI** (due to biomarker evidence of neurodegeneration despite normal cognition)  \n**Confidence:** **Medium** (high biomarker evidence but conflicting cognitive data)",
  "timestamp": "2025-07-26T01:35:16.109801"
}