{
  "ptid_time": "082_S_4244_2013-11-21",
  "img_path": "/data/qiuhui/data/adni/images/082_S_4244/2013-11-21/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 7,811 mm³, 22.6% above the reference mean. With a Z-score of 2.47 (99.3th percentile), this represents significant enlargement. ",
  "text_data": "Age is 93.4 years. Gender is Male. Education: 20 years. MMSE: 25.0. MoCA: 23.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.86 SUVR (moderate reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is significantly enlarged (22.6% above mean, Z-score 2.47), which is atypical for Alzheimer's disease (AD) where atrophy is expected. Cognitive scores (MMSE 25, MoCA 23) are borderline but not strongly indicative of dementia, and the absence of APOE4 and moderate amyloid burden (AV45) further reduces AD likelihood.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to borderline cognitive scores but atypical hippocampal enlargement and lack of strong AD biomarkers)",
  "timestamp": "2025-07-26T10:06:52.227272"
}