{
  "ptid_time": "007_S_4620_2016-03-28",
  "img_path": "/data/qiuhui/data/adni/images/007_S_4620/2016-03-28/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 6,426 mm³, 7.8% below the reference mean. With a Z-score of -0.67 (25.1th percentile), this represents normal volume . ",
  "text_data": "Age is 81.1 years. Gender is Male. Education: 19 years. MMSE: 28.0. MoCA: 26.0. Logical Memory: 12.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.25 SUVR (mild elevated). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is slightly below the reference mean but still within the normal range (Z-score -0.67). Cognitive scores (MMSE 28, MoCA 26) are intact, and there is no significant biomarker evidence (APOE4 negative, AV45 only mildly elevated) to suggest neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to mild AV45 elevation, though cognitive performance remains strong)",
  "timestamp": "2025-07-25T22:04:47.211097"
}