{
  "ptid_time": "021_S_0141_2007-02-22",
  "img_path": "/data/qiuhui/data/adni/images/021_S_0141/2007-02-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 22,854 mm³, 51.4% below the reference mean. With a Z-score of -1.49 (6.8th percentile), this represents mild atrophy; whole brain volume measures 1,093,540 mm³, 6.3% above the reference mean. With a Z-score of 0.82 (79.4th percentile), this represents normal volume . ",
  "text_data": "Age is 82.1 years. Gender is Male. Education: 12 years. MMSE: 27.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The ventricular volume shows mild atrophy (Z-score -1.49), but whole brain volume is normal (Z-score 0.82). The MMSE score of 27 is within the normal range, and the presence of one APOE4 allele increases risk but does not confirm impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T01:20:15.739329"
}