{
  "ptid_time": "941_S_1197_2009-02-24",
  "img_path": "/data/qiuhui/data/adni/images/941_S_1197/2009-02-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,742 mm³, 8.7% below the reference mean. With a Z-score of -0.24 (40.7th percentile), this represents normal volume ; whole brain volume measures 865,996 mm³, 6.7% below the reference mean. With a Z-score of -0.80 (21.1th percentile), this represents normal volume . ",
  "text_data": "Age is 84.4 years. Gender is Female. Education: 20 years. MMSE: 30.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, and the MMSE score of 30.0 indicates no cognitive impairment. The absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T17:28:49.511590"
}