{
  "ptid_time": "109_S_1183_2007-01-03",
  "img_path": "/data/qiuhui/data/adni/images/109_S_1183/2007-01-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,941 mm³, 15.0% below the reference mean. With a Z-score of -0.44 (33.1th percentile), this represents normal volume ; whole brain volume measures 971,245 mm³, 5.6% below the reference mean. With a Z-score of -0.74 (23.0th percentile), this represents normal volume . ",
  "text_data": "Age is 80.2 years. Gender is Male. Education: 16 years. MMSE: 24.0. Logical Memory: 6.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1583.00 pg/mL (mild elevated); Total tau: 337.60 pg/mL (mild elevated); Phosphorylated tau: 30.47 pg/mL (mild elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volumes (ventricular and whole brain) are within normal ranges, but the MMSE score of 24 suggests mild cognitive impairment. The mild elevation in Aβ, T-tau, and P-tau biomarkers indicates possible early neurodegenerative changes, though APOE4-negative status reduces Alzheimer's risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-26T11:30:37.701727"
}