{
  "ptid_time": "031_S_0554_2006-12-11",
  "img_path": "/data/qiuhui/data/adni/images/031_S_0554/2006-12-11/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,606 mm³, 31.4% above the reference mean. With a Z-score of 0.75 (77.4th percentile), this represents normal volume ; whole brain volume measures 912,812 mm³, 15.4% below the reference mean. With a Z-score of -2.00 (2.3th percentile), this represents significant atrophy. ",
  "text_data": "Age is 72.1 years. Gender is Male. Education: 14 years. MMSE: 17.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The patient shows significant whole brain atrophy (Z-score -2.00, 2.3rd percentile) alongside a low MMSE score of 17, which is consistent with cognitive impairment. The presence of one APOE4 allele further supports a neurodegenerative process.  \n\n**Diagnosis:** Dementia  \n**Confidence:** High",
  "timestamp": "2025-07-26T04:36:09.217076"
}