{
  "ptid_time": "018_S_0450_2009-07-16",
  "img_path": "/data/qiuhui/data/adni/images/018_S_0450/2009-07-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 45,239 mm³, 17.5% above the reference mean. With a Z-score of 0.42 (66.2th percentile), this represents normal volume ; whole brain volume measures 1,071,260 mm³, 0.8% below the reference mean. With a Z-score of -0.10 (46.1th percentile), this represents normal volume . ",
  "text_data": "Age is 71.4 years. Gender is Male. Education: 20 years. MMSE: 26.0. Logical Memory: 3.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, and the MMSE score of 26 is borderline but not definitively indicative of cognitive impairment. The presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T00:51:15.611954"
}