{
  "ptid_time": "007_S_2394_2013-07-15",
  "img_path": "/data/qiuhui/data/adni/images/007_S_2394/2013-07-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 50,972 mm³, 69.8% above the reference mean. With a Z-score of 1.66 (95.1th percentile), this represents moderate enlargement; hippocampal volume measures 7,397 mm³, 7.8% below the reference mean. With a Z-score of -0.78 (21.6th percentile), this represents normal volume ; whole brain volume measures 1,233,290 mm³, 8.7% above the reference mean. With a Z-score of 1.23 (89.1th percentile), this represents mild enlargement. ",
  "text_data": "Age is 69.4 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 10.0. APOEε4 alleles: 2.0. Biomarker levels: Florbetapir (AV45): 1.16 SUVR (normal ); Amyloid beta: 406.60 pg/mL (moderate reduced); Total tau: 208.00 pg/mL (normal ); Phosphorylated tau: 18.86 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate ventricular enlargement and mild whole brain enlargement, but hippocampal volume is within normal range. Cognitive scores (MMSE 30, MoCA 27) are intact, and while Aβ is moderately reduced, tau markers and AV45 are normal. APOE4 homozygous status increases AD risk, but current biomarkers and cognition do not yet meet dementia criteria.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (APOE4 and Aβ reduction suggest future risk, but no current cognitive or structural deficits align with dementia/MCI)",
  "timestamp": "2025-07-25T21:57:30.169150"
}