{
  "ptid_time": "073_S_4312_2012-10-15",
  "img_path": "/data/qiuhui/data/adni/images/073_S_4312/2012-10-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 23,025 mm³, 40.2% below the reference mean. With a Z-score of -0.96 (16.8th percentile), this represents normal volume ; hippocampal volume measures 7,164 mm³, 5.2% below the reference mean. With a Z-score of -0.51 (30.5th percentile), this represents normal volume ; whole brain volume measures 1,058,330 mm³, 2.0% below the reference mean. With a Z-score of -0.25 (40.0th percentile), this represents normal volume ; entorhinal cortex volume measures 4,756 mm³, 16.0% above the reference mean. With a Z-score of 1.08 (86.1th percentile), this represents mild enlargement; fusiform gyrus volume measures 18,663 mm³, 0.9% below the reference mean. With a Z-score of -0.08 (46.8th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,496 mm³, 5.4% above the reference mean. With a Z-score of 0.49 (68.7th percentile), this represents normal volume . ",
  "text_data": "Age is 70.3 years. Gender is Male. Education: 17 years. MMSE: 26.0. MoCA: 24.0. Logical Memory: 10.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only mild deviations (e.g., slightly reduced hippocampal volume and mildly enlarged entorhinal cortex). Cognitive scores (MMSE 26, MoCA 24) are borderline but not strongly indicative of impairment. APOE4 carrier status raises some risk but is not diagnostic.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline cognitive scores and APOE4 status, but normal structural findings)",
  "timestamp": "2025-07-26T09:43:33.277136"
}