{
  "ptid_time": "130_S_0423_2007-08-20",
  "img_path": "/data/qiuhui/data/adni/images/130_S_0423/2007-08-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 64,747 mm³, 37.7% above the reference mean. With a Z-score of 1.10 (86.3th percentile), this represents mild enlargement; whole brain volume measures 990,793 mm³, 3.7% below the reference mean. With a Z-score of -0.49 (31.3th percentile), this represents normal volume . ",
  "text_data": "Age is 80.3 years. Gender is Male. Education: 20 years. MMSE: 27.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. Biomarker levels: Amyloid beta: 501.90 pg/mL (mild reduced); Total tau: 249.80 pg/mL (normal ); Phosphorylated tau: 24.77 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (37.7% above reference mean), while whole brain volume is only slightly reduced (3.7% below reference mean). The MMSE score of 27 is within the normal range, and biomarkers (Aβ mildly reduced, T-tau and P-tau normal) suggest minimal Alzheimer's pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild ventricular enlargement and slightly reduced Aβ, but overall cognitive and biomarker profile suggests no significant impairment)",
  "timestamp": "2025-07-26T14:28:10.729842"
}