{
  "ptid_time": "941_S_1202_2007-08-24",
  "img_path": "/data/qiuhui/data/adni/images/941_S_1202/2007-08-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 54,420 mm³, 41.3% above the reference mean. With a Z-score of 0.99 (83.9th percentile), this represents normal volume ; whole brain volume measures 1,029,900 mm³, 4.6% below the reference mean. With a Z-score of -0.60 (27.6th percentile), this represents normal volume . ",
  "text_data": "Age is 78.0 years. Gender is Male. Education: 18 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular and whole brain volumes are within normal ranges, and the MMSE score of 30 is optimal, indicating no cognitive impairment. The absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T17:29:03.377871"
}