{
  "ptid_time": "037_S_0588_2008-06-17",
  "img_path": "/data/qiuhui/data/adni/images/037_S_0588/2008-06-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,134 mm³, 20.3% above the reference mean. With a Z-score of 0.48 (68.6th percentile), this represents normal volume ; whole brain volume measures 966,021 mm³, 14.9% below the reference mean. With a Z-score of -2.10 (1.8th percentile), this represents significant atrophy. ",
  "text_data": "Age is 66.1 years. Gender is Male. Education: 14 years. MMSE: 22.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The patient shows significant whole brain atrophy (Z-score -2.10, 1.8th percentile) alongside mild cognitive impairment (MMSE 22). The presence of two APOE4 alleles increases Alzheimer's risk. Ventricular volume is normal, but global atrophy and cognitive decline suggest neurodegeneration.  \n\n**Diagnosis:** **Dementia (likely Alzheimer’s disease)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T06:34:15.202789"
}