{
  "ptid_time": "098_S_2052_2011-03-08",
  "img_path": "/data/qiuhui/data/adni/images/098_S_2052/2011-03-08/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 8,066 mm³, 6.7% above the reference mean. With a Z-score of 0.65 (74.3th percentile), this represents normal volume ; whole brain volume measures 1,265,490 mm³, 17.2% above the reference mean. With a Z-score of 2.24 (98.7th percentile), this represents significant enlargement; entorhinal cortex volume measures 4,986 mm³, 21.6% above the reference mean. With a Z-score of 1.46 (92.8th percentile), this represents mild enlargement; fusiform gyrus volume measures 22,060 mm³, 17.1% above the reference mean. With a Z-score of 1.46 (92.7th percentile), this represents mild enlargement; middle temporal gyrus volume measures 21,391 mm³, 0.2% above the reference mean. With a Z-score of 0.02 (50.9th percentile), this represents normal volume . ",
  "text_data": "Age is 73.6 years. Gender is Male. Education: 20 years. MMSE: 29.0. MoCA: 25.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The hippocampal volume is normal, and other brain regions show either normal or enlarged volumes, which is atypical for Alzheimer's. Cognitive scores (MMSE 29, MoCA 25) are within normal limits, and the absence of APOE4 further reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T10:43:48.945423"
}