{
  "ptid_time": "011_S_0861_2009-10-07",
  "img_path": "/data/qiuhui/data/adni/images/011_S_0861/2009-10-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 69,461 mm³, 42.1% above the reference mean. With a Z-score of 3.81 (100.0th percentile), this represents profound enlargement; whole brain volume measures 854,762 mm³, 14.7% below the reference mean. With a Z-score of -2.50 (0.6th percentile), this represents significant atrophy. ",
  "text_data": "Age is 90.1 years. Gender is Male. Education: 16 years. MMSE: 17.0. Logical Memory: 2.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The data shows profound ventricular enlargement (Z-score 3.81) and significant whole brain atrophy (Z-score -2.50), consistent with advanced neurodegeneration. Combined with a low MMSE score (17/30) and APOE4 homozygosity (high genetic risk), this strongly suggests dementia.  \n\n**Diagnosis:** Dementia  \n**Confidence:** High",
  "timestamp": "2025-07-25T22:50:04.059276"
}