{
  "ptid_time": "035_S_4464_2016-06-08",
  "img_path": "/data/qiuhui/data/adni/images/035_S_4464/2016-06-08/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 8,788 mm³, 16.3% above the reference mean. With a Z-score of 1.59 (94.4th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 74.4 years. Gender is Male. Education: 16 years. MMSE: 28.0. MoCA: 29.0. Logical Memory: 15.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.09 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal volume is significantly above the reference mean (Z-score 1.59, 94.4th percentile), which is unusual for Alzheimer's disease (AD) as hippocampal atrophy is a hallmark feature. Cognitive scores (MMSE 28, MoCA 29) are in the normal range, and amyloid PET (AV45) is normal, ruling out significant amyloid pathology.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T05:57:21.750077"
}