{
  "ptid_time": "053_S_5202_2015-09-21",
  "img_path": "/data/qiuhui/data/adni/images/053_S_5202/2015-09-21/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 8,122 mm³, 5.7% above the reference mean. With a Z-score of 0.64 (73.9th percentile), this represents normal volume . ",
  "text_data": "Age is 67.7 years. Gender is Female. Education: 16 years. MMSE: 29.0. MoCA: 27.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.48 SUVR (profound elevated); Amyloid beta: 526.00 pg/mL (mild reduced); Total tau: 233.80 pg/mL (normal ); Phosphorylated tau: 23.48 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is above the reference mean, and cognitive scores (MMSE 29, MoCA 27) are within normal ranges, suggesting no significant cognitive impairment. However, the elevated AV45 (amyloid PET) and mildly reduced Aβ indicate early amyloid pathology, which may precede clinical symptoms.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to conflicting biomarkers—normal cognition but amyloid positivity suggests preclinical AD risk)",
  "timestamp": "2025-07-26T08:01:38.622899"
}