{
  "ptid_time": "100_S_0015_2006-04-18",
  "img_path": "/data/qiuhui/data/adni/images/100_S_0015/2006-04-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 32,392 mm³, 31.1% below the reference mean. With a Z-score of -0.90 (18.3th percentile), this represents normal volume ; whole brain volume measures 1,044,610 mm³, 1.5% above the reference mean. With a Z-score of 0.20 (57.8th percentile), this represents normal volume . ",
  "text_data": "Age is 81.3 years. Gender is Male. Education: 18 years. MMSE: 30.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: Ventricular and whole brain volumes are within normal ranges, and the MMSE score of 30/30 indicates no cognitive impairment. The presence of one APOE4 allele increases Alzheimer's risk but does not currently manifest as cognitive decline.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T11:14:17.505642"
}