{
  "ptid_time": "031_S_1066_2009-12-07",
  "img_path": "/data/qiuhui/data/adni/images/031_S_1066/2009-12-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 42,310 mm³, 9.8% above the reference mean. With a Z-score of 0.24 (59.3th percentile), this represents normal volume ; whole brain volume measures 891,369 mm³, 17.4% below the reference mean. With a Z-score of -2.26 (1.2th percentile), this represents significant atrophy. ",
  "text_data": "Age is 75.4 years. Gender is Male. Education: 13 years. MMSE: 18.0. Logical Memory: 0.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The patient shows significant whole brain atrophy (Z-score -2.26, 1.2th percentile) alongside cognitive impairment (MMSE 18), which is strongly suggestive of dementia. The presence of two APOE4 alleles further increases the likelihood of Alzheimer's disease.  \n\n**Diagnosis:** Dementia (likely Alzheimer’s disease)  \n**Confidence:** High",
  "timestamp": "2025-07-26T04:40:08.315349"
}