{
  "ptid_time": "011_S_0861_2008-10-07",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0861/2008-10-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 65,756 mm³, 39.9% above the reference mean. With a Z-score of 1.16 (87.7th percentile), this represents mild enlargement; whole brain volume measures 854,763 mm³, 16.9% below the reference mean. With a Z-score of -2.22 (1.3th percentile), this represents significant atrophy. ",
  "text_data": "Age is 89.1 years. Gender is Male. Education: 16 years. MMSE: 20.0. Logical Memory: 4.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The data shows significant whole brain atrophy (Z-score -2.22, 1.3rd percentile) and mild ventricular enlargement, consistent with neurodegenerative changes. Combined with an MMSE score of 20 (indicating cognitive impairment) and APOE4 homozygosity (high genetic risk), this strongly suggests dementia.  \n\n**Diagnosis:** Dementia  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:49:55.520404"
}