{
  "ptid_time": "057_S_0839_2008-04-09",
  "img_path": "/data/qiuhui/data/adni/images/057_S_0839/2008-04-09/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 31,679 mm³, 14.3% below the reference mean. With a Z-score of -0.39 (35.0th percentile), this represents normal volume ; whole brain volume measures 770,096 mm³, 17.0% below the reference mean. With a Z-score of -2.04 (2.0th percentile), this represents significant atrophy. ",
  "text_data": "Age is 80.9 years. Gender is Female. Education: 9 years. MMSE: 23.0. Laboratory findings: Lymphocytes: 2.80 (significant elevated). APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows significant whole brain atrophy (Z-score -2.04, 2nd percentile) but normal ventricular volume. Combined with an MMSE score of 23 (borderline impaired) and advanced age, this suggests cognitive decline, though APOE4-negative status reduces Alzheimer's risk.  \nDiagnosis: MCI  \nConfidence: Medium  \n\n(Key factors: MMSE just below normal cutoff + severe atrophy but no APOE4 risk allele creates diagnostic uncertainty between early dementia vs. MCI)",
  "timestamp": "2025-07-26T08:05:51.709637"
}