{
  "ptid_time": "073_S_0518_2007-06-13",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0518/2007-06-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,499 mm³, 18.4% below the reference mean. With a Z-score of -0.44 (33.1th percentile), this represents normal volume ; whole brain volume measures 991,831 mm³, 12.6% below the reference mean. With a Z-score of -1.78 (3.8th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 69.9 years. Gender is Male. Education: 20 years. MMSE: 27.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate whole brain atrophy (Z-score -1.78, 3.8th percentile) but normal ventricular volume. The MMSE score of 27 is within the normal range, and the presence of two APOE4 alleles increases Alzheimer's risk but does not confirm dementia.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium",
  "timestamp": "2025-07-26T09:30:59.686255"
}