{
  "ptid_time": "007_S_0293_2009-04-08",
  "img_path": "/data/qiuhui/data/adni/images/007_S_0293/2009-04-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,520 mm³, 3.4% above the reference mean. With a Z-score of 0.30 (61.9th percentile), this represents normal volume ; whole brain volume measures 1,107,760 mm³, 10.6% above the reference mean. With a Z-score of 1.81 (96.5th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 90.7 years. Gender is Male. Education: 12 years. MMSE: 26.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is within normal limits, and the whole brain volume is moderately enlarged, which is unusual for typical neurodegenerative patterns. The MMSE score of 26 is borderline but still within the normal range for age, and the presence of one APOE4 allele increases Alzheimer's risk but does not confirm pathology.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-25T21:49:00.731862"
}