{
  "ptid_time": "141_S_1245_2007-08-20",
  "img_path": "/data/qiuhui/data/adni/images/141_S_1245/2007-08-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,137 mm³, 6.9% below the reference mean. With a Z-score of -0.16 (43.7th percentile), this represents normal volume ; whole brain volume measures 910,248 mm³, 6.6% below the reference mean. With a Z-score of -0.83 (20.3th percentile), this represents normal volume . ",
  "text_data": "Age is 71.8 years. Gender is Female. Education: 14 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 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T16:56:57.965989"
}