{
  "ptid_time": "068_S_2184_2011-12-12",
  "img_path": "/data/qiuhui/data/adni/images/068_S_2184/2011-12-12/t1.nii.gz",
  "img_finding": "Image findings: hippocampal volume measures 7,150 mm³, 10.1% above the reference mean. With a Z-score of 0.81 (79.0th percentile), this represents normal volume ; whole brain volume measures 1,048,800 mm³, 13.0% above the reference mean. With a Z-score of 1.56 (94.1th percentile), this represents moderate enlargement; entorhinal cortex volume measures 4,770 mm³, 37.8% above the reference mean. With a Z-score of 2.04 (97.9th percentile), this represents significant enlargement; fusiform gyrus volume measures 16,647 mm³, 3.3% above the reference mean. With a Z-score of 0.25 (59.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,806 mm³, 4.3% above the reference mean. With a Z-score of 0.38 (64.9th percentile), this represents normal volume . ",
  "text_data": "Age is 81.4 years. Gender is Female. Education: 16 years. MMSE: 24.0. MoCA: 23.0. Logical Memory: 18.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The hippocampal, fusiform gyrus, and middle temporal gyrus volumes are within normal ranges, while whole brain and entorhinal cortex volumes are significantly enlarged. Cognitive scores (MMSE 24, MoCA 23) are slightly below typical cutoffs for normal cognition but not strongly indicative of dementia. APOE4 carrier status increases Alzheimer’s risk, but structural findings do not support neurodegeneration.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (Cognitive scores suggest mild decline, but structural findings are atypical for typical Alzheimer’s progression.)",
  "timestamp": "2025-07-26T08:54:02.243344"
}