{
  "ptid_time": "131_S_0441_2007-01-19",
  "img_path": "/data/qiuhui/data/adni/images/131_S_0441/2007-01-19/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,870 mm³, 0.7% below the reference mean. With a Z-score of -0.02 (49.4th percentile), this represents normal volume ; whole brain volume measures 979,668 mm³, 0.5% above the reference mean. With a Z-score of 0.06 (52.6th percentile), this represents normal volume . ",
  "text_data": "Age is 73.2 years. Gender is Female. Education: 16 years. MMSE: 30.0. 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 alleles further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T15:05:38.570798"
}