{
  "ptid_time": "029_S_1218_2008-08-15",
  "img_path": "/data/qiuhui/data/adni/images/029_S_1218/2008-08-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 57,003 mm³, 54.2% above the reference mean. With a Z-score of 1.46 (92.8th percentile), this represents mild enlargement; whole brain volume measures 921,879 mm³, 0.7% below the reference mean. With a Z-score of -0.08 (46.8th percentile), this represents normal volume . ",
  "text_data": "Age is 86.9 years. Gender is Female. Education: 16 years. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is mildly enlarged (54.2% above mean, Z-score 1.46), which can be associated with age-related atrophy, but whole brain volume is normal (0.7% below mean, Z-score -0.08). MMSE is intact (30/30), and there is no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (ventricular enlargement could suggest early changes, but no cognitive or genetic risk factors support impairment)",
  "timestamp": "2025-07-26T04:23:14.367603"
}