{
  "ptid_time": "021_S_0337_2010-05-05",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0337/2010-05-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 111,027 mm³, 188.3% above the reference mean. With a Z-score of 4.51 (100.0th percentile), this represents profound enlargement; whole brain volume measures 1,002,100 mm³, 7.2% below the reference mean. With a Z-score of -0.93 (17.6th percentile), this represents normal volume . ",
  "text_data": "Age is 79.8 years. Gender is Male. Education: 20 years. MMSE: 30.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is significantly enlarged (Z-score 4.51), which is a strong indicator of neurodegeneration, but the whole brain volume is within normal limits (Z-score -0.93). The MMSE score of 30 is intact, and the presence of one APOE4 allele increases risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to conflicting imaging findings—severe ventricular enlargement but normal MMSE and whole brain volume)",
  "timestamp": "2025-07-26T01:29:38.210499"
}