{
  "ptid_time": "037_S_0327_2009-06-23",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0327/2009-06-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 59,237 mm³, 53.8% above the reference mean. With a Z-score of 1.29 (90.1th percentile), this represents mild enlargement; whole brain volume measures 1,052,990 mm³, 2.4% below the reference mean. With a Z-score of -0.32 (37.5th percentile), this represents normal volume . ",
  "text_data": "Age is 73.0 years. Gender is Male. Education: 16 years. MMSE: 28.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Pittsburgh compound B: 1.56 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (53.8% above mean, Z-score 1.29), but whole brain volume is within normal limits (Z-score -0.32). MMSE score of 28 is normal, and the absence of APOE4 reduces genetic risk. No significant cognitive impairment is evident.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T06:26:48.172792"
}