{
  "ptid_time": "073_S_0746_2013-03-08",
  "img_path": "/data/qiuhui/data/adni/images/073_S_0746/2013-03-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 36,677 mm³, 30.7% above the reference mean. With a Z-score of 0.70 (75.9th percentile), this represents normal volume ; whole brain volume measures 994,623 mm³, 2.0% above the reference mean. With a Z-score of 0.26 (60.2th percentile), this represents normal volume ; entorhinal cortex volume measures 3,541 mm³, 3.6% below the reference mean. With a Z-score of -0.22 (41.3th percentile), this represents normal volume ; fusiform gyrus volume measures 18,250 mm³, 7.3% above the reference mean. With a Z-score of 0.66 (74.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 18,780 mm³, 2.0% below the reference mean. With a Z-score of -0.18 (43.0th percentile), this represents normal volume . ",
  "text_data": "Age is 79.8 years. Gender is Female. Education: 18 years. MMSE: 26.0. MoCA: 22.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volumes (ventricular, whole brain, entorhinal cortex, fusiform gyrus, and middle temporal gyrus) are all within normal ranges based on Z-scores and percentiles. The MMSE score of 26 is borderline (normal ≥24), while the MoCA score of 22 suggests mild cognitive impairment (normal ≥26). No APOE4 alleles are present, reducing genetic risk.  \n\n**Diagnosis:** **Mild Cognitive Impairment (MCI)**  \n**Confidence:** **Medium** (due to borderline MMSE and clear MoCA impairment, but normal imaging)",
  "timestamp": "2025-07-26T09:34:46.766682"
}