{
  "ptid_time": "024_S_6202_2020-02-24",
  "img_path": "/data/qiuhui/data/adni/images/024_S_6202/2020-02-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 20,248 mm³, 27.9% below the reference mean. With a Z-score of -0.64 (26.2th percentile), this represents normal volume ; hippocampal volume measures 7,393 mm³, 3.9% above the reference mean. With a Z-score of 0.36 (64.0th percentile), this represents normal volume ; whole brain volume measures 1,020,230 mm³, 4.7% above the reference mean. With a Z-score of 0.59 (72.2th percentile), this represents normal volume ; entorhinal cortex volume measures 4,793 mm³, 30.5% above the reference mean. With a Z-score of 1.87 (96.9th percentile), this represents moderate enlargement; fusiform gyrus volume measures 18,778 mm³, 10.4% above the reference mean. With a Z-score of 0.94 (82.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,081 mm³, 0.5% below the reference mean. With a Z-score of -0.04 (48.4th percentile), this represents normal volume . ",
  "text_data": "Age is 71.6 years. Gender is Female. Education: 20 years. MMSE: 30.0. MoCA: 25.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. Biomarker levels: Flobetaben (FBB): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are largely within normal ranges, with no significant atrophy in key regions like the hippocampus or whole brain. The MMSE score of 30 is normal, while the MoCA score of 25 suggests mild cognitive concerns, but not severe enough for dementia. The absence of APOE4 reduces genetic risk.  \n\n**Diagnosis:** **MCI (Mild Cognitive Impairment)**  \n**Confidence:** **Medium** (due to the borderline MoCA score but otherwise normal imaging and MMSE)",
  "timestamp": "2025-07-26T03:25:00.627218"
}