{
  "ptid_time": "002_S_6007_2018-04-18",
  "img_path": "/data/qiuhui/data/adni/images/002_S_6007/2018-04-18/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,072 mm³, 17.8% below the reference mean. With a Z-score of -0.41 (34.2th percentile), this represents normal volume ; hippocampal volume measures 7,268 mm³, 2.2% above the reference mean. With a Z-score of 0.20 (57.8th percentile), this represents normal volume ; whole brain volume measures 1,077,910 mm³, 10.6% above the reference mean. With a Z-score of 1.33 (90.9th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,812 mm³, 31.0% above the reference mean. With a Z-score of 1.90 (97.2th percentile), this represents moderate enlargement; fusiform gyrus volume measures 20,945 mm³, 23.1% above the reference mean. With a Z-score of 2.10 (98.2th percentile), this represents significant enlargement; middle temporal gyrus volume measures 22,795 mm³, 18.9% above the reference mean. With a Z-score of 1.64 (95.0th percentile), this represents moderate enlargement. ",
  "text_data": "Age is 77.8 years. Gender is Female. Education: 19 years. MMSE: 30.0. MoCA: 23.0. Logical Memory: 10.0. APOEε4 alleles: 2.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume data show normal to enlarged volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus), which are typically atrophic in Alzheimer's. However, the MoCA score of 23 suggests mild cognitive impairment, and the presence of two APOE4 alleles increases Alzheimer's risk.  \nDiagnosis: MCI  \nConfidence: Medium",
  "timestamp": "2025-07-25T20:35:44.987328"
}