{
  "ptid_time": "021_S_2142_2012-11-07",
  "img_path": "/data/qiuhui/data/adni/images/021_S_2142/2012-11-07/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 5,711 mm³, 12.1% below the reference mean. With a Z-score of -0.97 (16.7th percentile), this represents normal volume ; whole brain volume measures 1,061,450 mm³, 14.4% above the reference mean. With a Z-score of 1.72 (95.8th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 84.7 years. Gender is Female. Education: 12 years. MMSE: 24.0. MoCA: 22.0. Logical Memory: 3.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.51 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is within normal limits (Z-score -0.97), while whole brain volume is moderately enlarged (Z-score 1.72). Cognitive scores (MMSE 24, MoCA 22) are slightly below typical cutoffs but not severely impaired, and there is no APOE4 risk allele. However, profound AV45 (amyloid) elevation suggests significant amyloid pathology.  \n\nDiagnosis: **Mild Cognitive Impairment (MCI)**  \nConfidence: **Medium** (Cognitive scores are borderline, but amyloid burden is high, suggesting early neurodegenerative changes despite normal hippocampal volume.)",
  "timestamp": "2025-07-26T01:40:49.300310"
}