{
  "ptid_time": "007_S_0249_2009-03-12",
  "img_path": "/data/qiuhui/data/adni/images/007_S_0249/2009-03-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 40,300 mm³, 43.6% above the reference mean. With a Z-score of 1.00 (84.1th percentile), this represents normal volume ; whole brain volume measures 926,414 mm³, 4.9% below the reference mean. With a Z-score of -0.62 (26.7th percentile), this represents normal volume . ",
  "text_data": "Age is 75.0 years. Gender is Female. Education: 16 years. MMSE: 27.0. Logical Memory: 1.0. 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 1.00), while whole brain volume is slightly below the reference mean but also within normal range (Z-score -0.62). The MMSE score of 27 is within the normal range (≥26), and there is no clear evidence of cognitive impairment or dementia based on the provided data.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to lack of additional clinical or biomarker data to fully rule out very early changes)",
  "timestamp": "2025-07-25T21:48:10.758779"
}