{
  "ptid_time": "109_S_1114_2009-01-15",
  "img_path": "/data/qiuhui/data/adni/images/109_S_1114/2009-01-15/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 34,360 mm³, 7.0% below the reference mean. With a Z-score of -0.19 (42.5th percentile), this represents normal volume ; whole brain volume measures 791,485 mm³, 14.7% below the reference mean. With a Z-score of -1.77 (3.9th percentile), this represents moderate atrophy. ",
  "text_data": "Age is 80.3 years. Gender is Female. Education: 12 years. MMSE: 29.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The whole brain volume shows moderate atrophy (Z-score -1.77, 3.9th percentile), which is concerning for neurodegeneration, but the MMSE score of 29 is within the normal range, and there is no APOE4 risk allele. Ventricular volume is normal.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to conflicting imaging and cognitive findings)",
  "timestamp": "2025-07-26T11:30:05.592143"
}