{
  "ptid_time": "014_S_6765_2019-07-03",
  "img_path": "/data/qiuhui/data/adni/images/014_S_6765/2019-07-03/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,691 mm³, 41.9% above the reference mean. With a Z-score of 1.05 (85.3th percentile), this represents mild enlargement; hippocampal volume measures 7,745 mm³, 0.8% above the reference mean. With a Z-score of 0.09 (53.5th percentile), this represents normal volume ; whole brain volume measures 979,194 mm³, 4.9% below the reference mean. With a Z-score of -0.60 (27.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,213 mm³, 8.2% above the reference mean. With a Z-score of 0.64 (73.8th percentile), this represents normal volume ; fusiform gyrus volume measures 16,028 mm³, 12.0% below the reference mean. With a Z-score of -1.35 (8.9th percentile), this represents mild atrophy; middle temporal gyrus volume measures 19,015 mm³, 7.3% below the reference mean. With a Z-score of -0.65 (25.7th percentile), this represents normal volume . ",
  "text_data": "Age is 68.6 years. Gender is Female. Education: 16 years. MMSE: 26.0. Logical Memory: 6.0. Biomarker levels: Flobetaben (FBB): 1.32 SUVR (profound elevated). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume shows mild enlargement (Z-score 1.05), while the fusiform gyrus exhibits mild atrophy (Z-score -1.35). Other regions, including the hippocampus, are within normal ranges. The MMSE score of 26 is slightly below the typical cutoff for normal cognition (≥27), suggesting possible mild cognitive impairment.  \n\n**Diagnosis:** **MCI (Mild Cognitive Impairment)**  \n**Confidence:** **Medium** (due to borderline MMSE and mild structural changes, but no severe atrophy or clear dementia markers)",
  "timestamp": "2025-07-26T00:00:21.214150"
}