{
  "ptid_time": "006_S_4713_2016-06-02",
  "img_path": "/data/qiuhui/data/adni/images/006_S_4713/2016-06-02/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 9,285 mm³, 22.8% above the reference mean. With a Z-score of 2.23 (98.7th percentile), this represents significant enlargement. ",
  "text_data": "Age is 74.5 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.42 SUVR (significant elevated); Amyloid beta: 930.10 pg/mL (normal ); Total tau: 301.50 pg/mL (normal ); Phosphorylated tau: 27.26 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is significantly enlarged (22.8% above mean, Z-score 2.23), which is atypical for Alzheimer's pathology. Cognitive scores (MMSE 30, MoCA 27) are normal, and biomarkers (Aβ, T-tau, P-tau) are unremarkable despite elevated AV45 (amyloid PET). This suggests preserved cognition with no clear neurodegenerative markers.  \nDiagnosis: **CN (Cognitively Normal)**  \nConfidence: **Medium** (elevated AV45 is unusual but not definitive for pathology given other normal markers and cognitive performance)",
  "timestamp": "2025-07-25T21:41:03.412061"
}