{
  "ptid_time": "018_S_0450_2009-07-01",
  "img_path": "/data/qiuhui/data/adni/images/018_S_0450/2009-07-01/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 45,239 mm³, 17.5% above the reference mean. With a Z-score of 0.42 (66.2th percentile), this represents normal volume ; whole brain volume measures 1,071,260 mm³, 0.8% below the reference mean. With a Z-score of -0.10 (46.1th percentile), this represents normal volume . ",
  "text_data": "Age is 71.4 years. Gender is Male. Education: 20 years. MMSE: 26.0. Logical Memory: 3.0. APOEε4 alleles: 1.0. ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "Reasoning: The ventricular volume is slightly above the reference mean but still within the normal range (Z-score 0.42), and the whole brain volume is minimally below the reference mean (Z-score -0.10), both indicating no significant atrophy. The MMSE score of 26 is borderline but does not strongly suggest cognitive impairment.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline MMSE and lack of detailed neuropsychological data)",
  "timestamp": "2025-07-26T00:51:10.113567"
}