{
  "ptid_time": "067_S_0607_2007-08-13",
  "img_path": "/data/qiuhui/data/adni/images/067_S_0607/2007-08-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,116 mm³, 28.3% below the reference mean. With a Z-score of -0.65 (25.8th percentile), this represents normal volume ; whole brain volume measures 886,799 mm³, 9.0% below the reference mean. With a Z-score of -1.13 (12.8th percentile), this represents mild atrophy. ",
  "text_data": "Age is 79.0 years. Gender is Female. Education: 14 years. MMSE: 30.0. Logical Memory: 6.0. APOEε4 alleles: 1.0. Biomarker levels: Amyloid beta: 499.70 pg/mL (mild reduced); Total tau: 370.90 pg/mL (moderate elevated); Phosphorylated tau: 37.50 pg/mL (significant elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows mild whole brain atrophy and normal ventricular volume, with biomarker evidence of amyloid pathology (Aβ mildly reduced) and significant tau pathology (elevated T-tau and P-tau). Despite these findings, cognitive performance (MMSE 30) remains intact.  \nDiagnosis: **CN (Cognitively Normal)**  \nConfidence: **Medium** (Biomarkers suggest early AD pathology, but cognition is preserved, making progression to MCI/dementia likely in the future.)",
  "timestamp": "2025-07-26T08:30:58.821811"
}