{
  "ptid_time": "052_S_1168_2008-12-01",
  "img_path": "/data/qiuhui/data/adni/images/052_S_1168/2008-12-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,241 mm³, 20.9% below the reference mean. With a Z-score of -0.56 (28.6th percentile), this represents normal volume ; whole brain volume measures 899,635 mm³, 3.1% below the reference mean. With a Z-score of -0.37 (35.6th percentile), this represents normal volume . ",
  "text_data": "Age is 83.2 years. Gender is Female. Education: 16 years. MMSE: 29.0. Logical Memory: 15.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The ventricular and whole brain volumes are within normal ranges (Z-scores close to 0, percentiles near the median). The MMSE score of 29 is well within the normal range (≥26), and the absence of APOE4 alleles reduces genetic risk. No significant cognitive or structural abnormalities are present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T07:44:08.775602"
}