{
  "ptid_time": "099_S_0533_2008-06-13",
  "img_path": "/data/qiuhui/data/adni/images/099_S_0533/2008-06-13/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 125,121 mm³, 238.5% above the reference mean. With a Z-score of 6.44 (100.0th percentile), this represents profound enlargement; whole brain volume measures 1,029,670 mm³, 10.9% above the reference mean. With a Z-score of 1.31 (90.5th percentile), this represents mild enlargement. ",
  "text_data": "Age is 83.0 years. Gender is Female. Education: 12 years. MMSE: 29.0. Logical Memory: 7.0. Laboratory findings: Thyroid Stim. Hormone: 4.42 (significant elevated); Vitamin B12: 1146.00 (profound elevated); Monocytes: 1.21 (profound elevated); Monocytes: 19.00 (profound elevated); Basophils: 0.00 (significant reduced). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The ventricular volume is significantly enlarged (238.5% above reference, Z-score 6.44), which is strongly indicative of neurodegeneration, while whole brain volume is mildly enlarged (likely due to compensatory mechanisms or individual variability). Despite the structural changes, the MMSE score of 29 is within the normal range, suggesting preserved cognitive function.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (High structural abnormality but normal cognition; APOE4-negative status supports resilience despite atrophy)",
  "timestamp": "2025-07-26T10:57:26.289322"
}