{
  "ptid_time": "073_S_2182_2013-12-04",
  "img_path": "/data/qiuhui/data/adni/images/073_S_2182/2013-12-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 18,891 mm³, 37.1% below the reference mean. With a Z-score of -0.88 (18.9th percentile), this represents normal volume ; hippocampal volume measures 7,825 mm³, 2.5% below the reference mean. With a Z-score of -0.25 (40.1th percentile), this represents normal volume ; whole brain volume measures 1,152,920 mm³, 1.6% above the reference mean. With a Z-score of 0.23 (59.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,111 mm³, 3.6% below the reference mean. With a Z-score of -0.25 (40.3th percentile), this represents normal volume ; fusiform gyrus volume measures 21,449 mm³, 7.7% above the reference mean. With a Z-score of 0.64 (74.0th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,154 mm³, 7.8% above the reference mean. With a Z-score of 0.64 (73.9th percentile), this represents normal volume . ",
  "text_data": "Age is 67.5 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 23.0. Logical Memory: 16.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampus, entorhinal cortex, fusiform gyrus, etc.) are within normal ranges (Z-scores close to 0, percentiles near 50th). The MMSE is normal (30/30), but the MoCA (23/30) suggests mild cognitive impairment (MCI). No APOE4 allele reduces Alzheimer's risk.  \n**Diagnosis:** **MCI** (due to MoCA score despite normal imaging)  \n**Confidence:** **Medium** (imaging is normal, but MoCA indicates possible early cognitive decline)",
  "timestamp": "2025-07-26T09:36:51.958184"
}