{
  "ptid_time": "033_S_0889_2007-04-25",
  "img_path": "/data/qiuhui/data/adni/images/033_S_0889/2007-04-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 82,249 mm³, 193.0% above the reference mean. With a Z-score of 4.42 (100.0th percentile), this represents profound enlargement; whole brain volume measures 818,035 mm³, 16.1% below the reference mean. With a Z-score of -2.02 (2.2th percentile), this represents significant atrophy. ",
  "text_data": "Age is 73.0 years. Gender is Female. Education: 16 years. MMSE: 26.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The data shows profound ventricular enlargement (193% above reference mean) and significant whole brain atrophy (16.1% below reference mean), which are strong indicators of neurodegeneration. The MMSE score of 26 is borderline, but combined with the structural changes and APOE4 carrier status, this suggests cognitive impairment.  \nDiagnosis: Dementia  \nConfidence: High",
  "timestamp": "2025-07-26T05:20:25.547710"
}