{
  "ptid_time": "007_S_0249_2007-04-04",
  "img_path": "/data/qiuhui/data/adni/images/007_S_0249/2007-04-04/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,843 mm³, 34.8% above the reference mean. With a Z-score of 0.80 (78.7th percentile), this represents normal volume ; whole brain volume measures 923,955 mm³, 5.2% below the reference mean. With a Z-score of -0.65 (25.6th percentile), this represents normal volume . ",
  "text_data": "Age is 73.0 years. Gender is Female. Education: 16 years. MMSE: 28.0. Logical Memory: 9.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is slightly above the reference mean but still within normal range (Z-score 0.80), and whole brain volume is slightly below the reference mean but also within normal range (Z-score -0.65). The MMSE score of 28 is within the normal range, and there are no clear indicators of cognitive impairment or dementia.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline brain volume changes but normal MMSE and no clinical symptoms)",
  "timestamp": "2025-07-25T21:47:46.310972"
}