{
  "ptid_time": "018_S_0406_2008-01-25",
  "img_path": "/data/qiuhui/data/adni/images/018_S_0406/2008-01-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 83,547 mm³, 116.9% above the reference mean. With a Z-score of 2.80 (99.7th percentile), this represents significant enlargement; whole brain volume measures 882,989 mm³, 18.2% below the reference mean. With a Z-score of -2.36 (0.9th percentile), this represents significant atrophy. ",
  "text_data": "Age is 79.3 years. Gender is Male. Education: 11 years. MMSE: 25.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The significant ventricular enlargement (Z-score 2.80) and whole brain atrophy (Z-score -2.36) indicate substantial structural brain changes. Combined with mild cognitive impairment (MMSE 25) and APOE4 positivity, this strongly suggests neurodegenerative pathology.  \nDiagnosis: Dementia (likely Alzheimer’s disease)  \nConfidence: High",
  "timestamp": "2025-07-26T00:49:08.389009"
}