{
  "ptid_time": "027_S_5169_2015-06-05",
  "img_path": "/data/qiuhui/data/adni/images/027_S_5169/2015-06-05/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 9,071 mm³, 18.0% above the reference mean. With a Z-score of 2.02 (97.9th percentile), this represents significant enlargement. ",
  "text_data": "Age is 67.7 years. Gender is Female. Education: 18 years. MMSE: 30.0. MoCA: 30.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.11 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is significantly enlarged (18.0% above mean, Z-score 2.02), which is unusual for Alzheimer's pathology (typically associated with atrophy). Cognitive scores (MMSE 30, MoCA 30) are intact, and amyloid PET (AV45) is normal, suggesting no neurodegenerative pathology. APOE4 carrier status alone does not override these findings.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T04:10:24.133634"
}