{
  "ptid_time": "003_S_0907_2007-04-23",
  "img_path": "/data/qiuhui/data/adni/images/003_S_0907/2007-04-23/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 39,401 mm³, 6.6% above the reference mean. With a Z-score of 0.18 (57.1th percentile), this represents normal volume ; whole brain volume measures 834,234 mm³, 10.1% below the reference mean. With a Z-score of -1.21 (11.2th percentile), this represents mild atrophy. ",
  "text_data": "Age is 89.1 years. Gender is Female. Education: 20 years. Handedness: Unknown. Race: Unknown. MMSE: 30.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows mild whole brain atrophy (Z-score -1.21, 11.2th percentile) but normal ventricular volume. Despite being 89 years old, her MMSE score of 30 is perfect, and she has no APOE4 alleles, which reduces Alzheimer's risk.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (mild atrophy could be age-related, but MMSE is flawless)",
  "timestamp": "2025-07-25T20:37:49.126792"
}