{
  "ptid_time": "099_S_0470_2006-11-27",
  "img_path": "/data/qiuhui/data/adni/images/099_S_0470/2006-11-27/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,575 mm³, 25.4% below the reference mean. With a Z-score of -0.69 (24.6th percentile), this represents normal volume ; whole brain volume measures 937,379 mm³, 1.0% above the reference mean. With a Z-score of 0.12 (54.7th percentile), this represents normal volume . ",
  "text_data": "Age is 87.1 years. Gender is Female. Education: 13 years. MMSE: 25.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The ventricular and whole brain volumes are within normal ranges, and the MMSE score of 25 is borderline but not strongly indicative of dementia. The presence of one APOE4 allele increases Alzheimer's risk but does not confirm impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T10:56:27.854923"
}